Question

What is diction?

Answer 1

Diction is the author's word choice.
So A, otherwise known as the first choice in your list. 
Hope this helps!

Answer 2

The best and most correct answer among the choices provided by your question is the first choice or letter A "an author's word choice."

Diction refers to the writer's or the speaker's distinctive vocabulary choices and style of expression in a poem or story.


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