Consider the following code.
// insertion point 1
using namespace std;
const float pi = 3.14;
int main()
{
//insertion point 2
float r = 2.0;
float area;
area = pi * r * r;

cout < < "area = " < < area < return 0;
} //
insertion point 3

in this code, where does the include statement belong?
a. insertion point 1
b. insertion point 2
c. insertion point 3
d. anywhere in the program

a. Insertion Point 1

Explanation:

Include statement should be written at Insertion Point 1 because using namespace std will need to look into the include statement, otherwise it will prompt for an error. It cannot be written at Insertion point 3 either because the cout statement belongs to the include statement, and placing the statement after cout will cause an error and the program execution will stop.

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