Answer: For loop
Explanation:
Using the for loop we can get the exact number of values/outcomes we require.
For example: printf(enter 20 numbers");
for(int i=0; i<20;i++)
{
scanf("%d", &number);
}
So, this is an implementation of for loop in C. Using it we can enter exact 20 numbers not less or more than that.
Therefore, for loop is the answer.