Creo que el 24 de julio de 1911, un explorador estadounidense, Hiram Bingham lo descubrió. Vi un video de historia sobre eso.
The answer is A. "Mis" is plural but it is not supposed to be.
The answer would be "hace". This is because "hace" refers to the usted form. The usted form is used in situations where you are using he, she or it.
1. Puso
2. Vino
3. trajeron