Modernist writers use a lot of symbolism and imagery
A. because it was a time of beauty and peace.
B. because they didn't take time to fully develop their
thinking on what they were writing about.
C. to let the reader think for himself instead of the author
dictating a fixed meaning.

C. to let the reader think for himself instead of the author

dictating a fixed meaning.

Explanation:

People are more independent than they used to be. Modernist writers have to incorporate and reflect that in their writing.

sing because that is what they are doing in the sentence

explanation:

the simple predicate is the main verb in the predicate that tells what the subject does. example: my father fixed the dryer. read each sentence. draw a line under the complete predicate.