Answer:
d. 40
Step-by-step explanation:
Immediately, c. 30 and e. 50 can be eliminated because 20 is not a factor of these numbers. Now, factoring the other numbers, 40 is the only number that matches the question criteria. Although 20 is a factor of 10, 20, and 40, only 40 is greater than 30; hence, 40 is the answer.