(7^4)^3 = 13841287201
7^6 x 7^6 = 13841287201
13841287201/13841287201 = 1
With that information, we can rule out the bottom right.
7^12 = 13841287201
13841287201/13841287201 = 1
We can also rule out the bottom left.
7^12 = 13841287201
7^36 = 2.6517308e+30
13841287201/2.6517308e+30 = 5.2197181e-21
That does not equal 1, so the answer is the top right.
Also, 7^0 = 1.
Hope this helps! Good luck.