The first one is incorrect because Traeria is supposed to be traera.
The second one is the first one, de lo que una persona haria como presidente del pais
The third one, I am not sure of since there isn't a question, but I would chose B, hablaria con otros presidentes
The fourth one, has the same problem as the third one but I think it is A, cambiaria los hospitales
The fifth one, would be C, Podria el estudiar esta noche?
I hope this helped :)
