Which statement best explains why early roman art and late etruscan art are difficult to distinguish?

a. etruscan art was removed from the roman republic.
b. etruscan artists worked for romans artists.
c. roman artists killed etruscan artists.
d. the roman republic outlawed etruscan art.

I cant pick out an answer but i hope this helps, changes rarely happen overnight. They are very gradual, with shades of gray. Because Etruscan IS very early Rome, it's hard to tell when the Etruscan Period ended and what is considered the "Roman" Period began. No one just threw a switch and said, "Okay, let's be Roman today." It was a gradual process. 

The reason why it is difficult is because it is hard to pinpoint a location in those shades of gray.

The answer is a : varying the size of objects or subjects, so that some are smaller than others and the illusion of depth is created.hope this : )