Radio Broadcasting

Radio broadcasting, an important element in mass communication, was first introduced in India in two key cities: Bombay (now known as Mumbai) and Calcutta (now known as Kolkata). The initial broadcasts in Bombay began in 1923 through the efforts of amateur radio clubs. Calcutta followed shortly after with its broadcasts starting in the same period. These two cities were the pioneers of radio broadcasting in India, marking the beginning of a significant phase in mass media development.

Therefore, the correct answer is: Bombay and Calcutta.

When writing a radio script, certain important factors must be considered to ensure effective communication and engagement with the audience. Let's review the aspects listed and understand why some are crucial while others are less pertinent to radio scriptwriting:

1. Write simple sentences: In radio, clarity is key. Listeners cannot review content like written text, so simple sentences help convey the message clearly and effectively. This ensures that information is easily understood without the need for repetition.
2. Understand the subject and primary audience: Knowing the topic and whom you are communicating with allows for tailoring the content to meet the expectations and interest levels of the audience. This helps maintain their attention and makes the content more engaging and relevant.
3. Know the intended duration: Radio segments often have strict time constraints, requiring careful planning to ensure all essential information is covered within the allotted time. This helps in maintaining the flow and pacing of the program.
4. Use literary words: While literary words may enrich a text, they can complicate understanding in a radio context where immediacy and clarity are crucial. Therefore, using literary language is less desirable in this medium.

We conclude that options (A), (B), and (C) are critical for writing an effective radio script, as they focus on clarity, relevance, understanding of the audience, and adherence to time constraints.

The correct choices are thus: (A), (B), and (C) only.