What will be the output of the following C++ code?

#include <stdio.h>
#include <math.h>
int main ()
{
    double param, result;
    param = 5.5;
    result = log (param);
    printf ("%lf", result );
    return 0;
}

A. <vector> B. <array> C. <list> D. <map>

A. Simple Template Library B. Standard Template Library C. System Template Library D. Structured Template Library

A. To sort elements of a container B. To search for an element in a container C. To insert elements into a container D. To remove elements from a container

A. vector B. list C. set D. map