Respuesta :
If you take a close look at the picture you can see that A can't be right, it doesn't have the little square at the bottom. It's not B either because DEA and FEC aren't even close to being the same. I'm not sure what D means.
Your best bet is C. And besides, I just took the test so I should know what the answer is.
Your best bet is C. And besides, I just took the test so I should know what the answer is.

If we guess a simple guess, it might seems the answer is A. But, we can't proof any theorem that the angle is right angle. So, the most sophisticate excise guess is C. I will bet C too.