A. Metaphor
A metaphor is a direct comparison
Marullus points out that if the Commoner is a carpenter, as he reports in line 6, he should not be out on the streets.
I believe the correct answer is practices.
The entire paragraph is describing a practice which is quite common for this culture group. The practice is that of a competition where the emperor is present. There are no particular attitudes, values, or goals presented in the excerpt.
If you have already had a research questing identifies, you should: B, turn it into an assertion.