What is the purpose of the 'extern' keyword when declaring a function in C?
A. To specify that the function is not defined in the current file
B. To declare a function as a constant
C. To declare a function with a variable number of arguments
D. To specify that the function is recursive
Answer: Option A
Related Questions on Function
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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