Explanation: During a function call, only giving mandatory argument as a keyword argument. Optional
Which argument is used in function call?
The term parameter (sometimes called formal parameter) is often used to refer to the variable as found in the function definition, while argument (sometimes called actual parameter) refers to the actual input supplied at function call.
How many arguments can call a function?
The main function can be defined with no parameters or with two parameters (for passing command-line arguments to a program when it begins executing). The two parameters are referred to here as argc and argv, though any names can be used because they are local to the function in which they are declared.
