Answer:
3,525 Students total after 7 years.
Explanation:
First I did 2.5% of 3,000 and got 75. I then did 75 * 7= 525. So the school gained 525 students in 7 years so Then To get the totl amount of students in the school after 7 years I did 3,000 + 525 and got a final result of 3,525.
This explanation and my work is 100% correct , yet the answer is not listed, You can do what you want with my answer, but I tried to help. If I had to make an educated guess about what the actual answer is then I would say the answer is A. But like I said before I'm not 100% SURE that A is correct.