The Topic Sentence Below Is Followed by a Brainstormed List

Multiple Choice

The topic sentence below is followed by a brainstormed list of possible ideas for a paragraph. Decide which ideas support the topic sentence and should be kept and which ideas should be dropped. Select "keep" or "drop" for each idea. Topic sentence: Modern fireworks have their origins in tenth-century Chinese pyrotechnics.
Originally the Chinese invented firecrackers for use as weapons.

A) Keep
B) Drop