Suppose That We Are Evaluating the Strength of the Following

Multiple Choice

Suppose that we are evaluating the strength of the following argument by analogy.Which similarity between ballet and opera would most help to confirm that this is a strong argument? Ballet is similar to opera
Opera tickets are expensive.
Ballet tickets are expensive.

A) They are public performances.
B) They attract upper-class patrons.
C) They require discipline and talent.
D) They started in Italy.
E) They are set to music.