What is the purpose of an enum in C?

How are enum constants defined in C?

What is the default type of an enum in C?

How can you access enum constants in C?

What is a function in C?

What is the keyword used to define a function in C?

What is the return type of a function that doesn't return any value in C?

What is used to call a function in C?

What is a function that calls itself in C?

What is recursion in C?

What is a base case in recursion?

What is a recursive function's calling itself?

What is a recursive function's intermediate result?

What is a recursive function's control stack?

What is the storage class that allocates memory for a variable once for the entire program?