Question

The following sentences test correctness and effectiveness of expression.

Explaining modern art is impossible, partly because of its complexity but largely because of it rapidly changing.

• A. Of it rapidly changing
• B. It makes rapid changes
• C. Of the rapidity with which it changes
• D. Changing it is rapid
• E. It changes so rapid

Answer 1

The correct option is C Of the rapidity with which it changes

Here, "rapidly changing" is an incomplete construct and ungrammatical within the context of the sentence. Option C is the only option that rectifies this error without adding any new errors.