Question

Choose the option that fills the blank with the most suitable word:

She could paint pictures _____ the rate of one picture a month.

• A. with
• B. by
• C. at
• D. for

Answer 1

The correct option is C at

A preposition is a word which comes before a noun or a pronoun and establishes a relationship between the elements of a clause or words. Option C)at is correct as it indicates an amount. The other options are wrong as with, by, and for indicate inclusion, usage, and a purpose respectively. These uses don't fit in the given question. The correct answer is C)at.