A. Whole source file in which it is defined
B. From the point of declaration to the end of the file in which it is defined
C. Any source file in a program
D. From the point of declaration to the end of the file being compiled
Answer: Option D
In C, what is a function primarily used for?
A. Decision making
B. Variable declaration
C. Code organization and reusability
D. Printing output
What is the purpose of a function prototype in C?
A. To declare a function's return type
B. To declare a function's name
C. To declare a function's parameters and return type
D. To declare a function's name and parameters
In C, how are function arguments passed by default?
A. By value
B. By reference
C. By pointer
D. By address
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