Logic Gates

Step 1: Identify the gate type.
The given gate is an OR gate, which outputs HIGH if at least one of the inputs is HIGH.

Step 2: Analysis of options.
- (A) If and only if both the inputs are LOW: This is incorrect as the OR gate outputs LOW only when both inputs are LOW.
- (B) If and only if both the inputs are HIGH: This is incorrect since the OR gate will also output HIGH if just one input is HIGH.
- (C) If one of the inputs is HIGH: This is correct because the OR gate will output HIGH if either input is HIGH.
- (D) If one of the inputs is LOW: This is incorrect because the OR gate will still output HIGH if one input is HIGH.

Step 3: Conclusion.
The correct answer is (C), as the OR gate produces a HIGH output if one of the inputs is HIGH.