Resource Management

Step 1: Understanding the Concept:
A 'device of investment' refers to an institution, instrument, or channel through which individuals can invest their money with the expectation of generating a return.

Step 2: Detailed Explanation:
- Post Office: Post offices in many countries, including India, offer various government-backed savings and investment schemes like National Savings Certificates (NSC), Kisan Vikas Patra (KVP), and Public Provident Fund (PPF). They are a major channel for investment.
- Bank: Banks are primary financial institutions that offer a wide range of investment products such as Fixed Deposits (FDs), Recurring Deposits (RDs), and mutual funds.
- Market: While one invests 'in the market' (e.g., stock market), the term 'market' itself is a broad concept, not a single device or institution like a bank or post office.
Since both Post Offices and Banks are key institutions that provide investment instruments, 'Both (A) and (B)' is the correct answer.

Step 3: Final Answer:
Both the Post Office and the Bank serve as devices or institutions for investment.

Step 1: Understanding the Concept:
A budget is a financial plan for a defined period. Budgets can be classified based on the duration they cover. The question asks to identify which of the given options are valid types of budgets based on their time frame.

Step 2: Detailed Explanation:
- Daily budget: This is a plan for income and expenditure for a single day. It is a short-term budget.
- Weekly budget: This plan covers a period of one week.
- Annual budget: This is a long-term budget that plans finances for an entire year.
All three options represent financial plans distinguished by their duration. Therefore, they are all types of budgets classified on the basis of time.

Step 3: Final Answer:
Since Daily, Weekly, and Annual budgets are all classifications based on duration, the correct option is All of these.

Step 1: Understanding the Concept:
A one-time investment involves depositing a lump sum of money at the beginning of the investment period. In contrast, a periodic investment involves making regular contributions over time. The question asks to identify the option that is not a one-time (lump-sum) investment.

Step 2: Detailed Explanation:
- National Savings Certificate (NSC): This is a government savings bond where an individual invests a lump sum amount at the time of purchase for a fixed tenure.
- Fixed Deposits (FD): An FD is an instrument where a lump sum is deposited with a bank for a fixed period at a predetermined interest rate. It is a classic example of a one-time investment.
- Recurring Deposits (RD): An RD requires the investor to deposit a fixed amount of money at regular intervals (usually monthly) for a specified period. This involves periodic payments rather than a single lump-sum investment.
- Kisan Vikas Patra (KVP): This is another government savings scheme where a lump sum is invested, and it doubles in a predetermined period.
Based on the descriptions, Recurring Deposit is the only option that involves systematic, periodic investments rather than a one-time deposit.

Step 3: Final Answer:
Recurring Deposits are not a one-time investment as they require regular, periodic contributions.