Which set of numbers is arranged in descending order? (f point)

7 *10^ ..30 ,7.2*10^ -25 .7.2*10^ -30 .7.6*10^ -25

O 7.6 * 10 ^ - 25, 7.2 * 10 ^ - 25, 7.2 * 10 ^ - 30, 7 * 10 ^ - 30

7.2 * 10 ^ - 30, 7 * 10 ^ - 30, 7.6 * 10 ^ - 25, 7.2 * 10 ^ - 25

○ 7.6 * 10 ^ - 25, 7.2 * 10 ^ - 30, 7.2 * 10 ^ - 25, 7 * 10 ^ - 30

The correct answer is:

7.6 * 10 ^ - 25, 7.2 * 10 ^ - 30, 7.2 * 10 ^ - 25, 7 * 10 ^ - 30