C++ Pointers & Functions Question:

Which is more effective while calling the functions?
a) call by value
b) call by reference
c) call by pointer
d) none of the mentioned

b) call by reference

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The output of this program? #include <iostream> using namespace std; int main() { int arr[] = {4, 5, 6, 7}; int p = (arr + 1); cout << p; return 0; } a) 4 b) 5 c) 6 d) 7	How many max number of arguments can present in function in c99 compiler? a) 99 b) 90 c) 102 d) 127