Concept:A divisor is even if it contains at least one factor of 2. We find all divisors of 100 and count those divisible by 2.Explanation:First, write all divisors of 100: 1,2,4,5,10,20,25,50,100.Now, pick the even numbers from this list: 2,4,10,20,50,100.Count them: there are 6 even divisors.Answer:The number of even divisors of 100 is 6, which corresponds to option A.