Ineed with b. the teacher said we can plug numbers into the angles to prove it false.

the angles at vertex C are clearly vertical angles and thus equal, however, the triangles made would be similar only if AB || ED, if that were true then the angles in the triangles will also be congruent, however we do not have information stating that AB and ED are indeed parallel, a counterexample will be, Check the picture below.

answer by yourhope:

hi! : )

a farmer that lived in ancient egypt would most likely be barried in the sand, in the desert!

: )