Answer:
Option B. the following line from "The Contest"best support Doyle's claim that the Greeks took their cultural performances and art seriously and were good judges of art:
"Every Greek was a trained critic, and as unsparing in his hisses as he was lavish in his applause."
Step-by-step explanation:
The line supports Doyle's claim that the Greeks took their cultural performances and art seriously and were good judges of art as it states, firstly, that every Greek is a trained critic, meaning that they are used to attending art performances. Secondly, it states that they are good and fair judges of art, as they are equally severe when they do not like a performance, as they are generous in appreciating a good act.