Consider the following method.

/** Precondition: bound >= 0 */

public int sum(int bound)

{

int answer = 0;

for (int i = 0; i < bound; i++)

{

answer += bound;

}

return answer;

}

Assume that sum is called with a parameter that satisfies the precondition and that it executes without error. How many times is the test expression i < bound in the for loop header evaluated?

a. 0

b. bound - 1

c. bound

d. bound + 1

e. an unknown number of times