In each of the following questions, sentences are given with blanks to be filled in with an appropriate word(s). Four alternatives are suggested for each question. Choose the correct alternative out of the four as your answer.
Lemons are sold _____ the dozen in the market.

Options

A. in
B. at
C. for
D. by

Answer

D

Explanation

by the dozen : in large quantities
Here, by is the right usage.