Question

Any C program

• A. must contain at least one function
• B. need not contain any function
• C. needs input data
• D. must contain at least two functions

Hint:

The mandatory function in every C program is the main() function, which serves as the execution starting point.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
The structure of a C program relies on modular blocks of code called functions.

Step 2: Detailed Explanation:
Every standard C program execution starts with a specific entrance point called the main() function.
Without the main() function, the compiler cannot determine where to start execution, and the linker will throw an error.
Even a basic C program requires this single function to run.
Other user-defined or library functions are optional.
Therefore, any C program must contain at least one function.

Step 3: Final Answer
The correct option is (A).