Which two statements about narrative nonfiction are true?
events and incidents presented are as close to reality as possible.
writers use imagination to develop invented events and people.
the action in the story reflects the writer's central thesis statement.
writers can use plot and characterization to develop reflection.

The two statements about narrative nonfiction are true are:

1.       Events and incidents presented are as close to reality as possible.

2.       The action in the story reflects the writer's central thesis statement.

It also may be presented objectively or subjectively.

type of error:

the error in the sentence is a "dangling modifier". a dangling modifier is a phrase, word or clause that "dangles" because there is not target to modify. in this case, "after mopping the floor" is the dangling modifier since it has no word to modify. the noun "house" cannot mop the floor; therefore there is a mistake in the writing of the sentence.

i think that the answer is a