Answer:
I think it's A). 2,048
Explanation:
I did the problem.
4 * 2 = 8 2nd year
8 * 2 = 16 3rd year
16 * 2 = 32 4th year
32 * 2 = 64 5th year
64 * 2 = 128 6th year
128 * 2 = 256 7th year
256 * 2 = 516 8th year
516 * 2 = 1024 9th year
1024 * 2 = 2048 10th year
If 2048 isn't correct, than the answer is B?. 1,024