Which visual aid should Kathryn use to show how the United States entering World War II affected women deciding to enter the workforce? a Venn diagram
a web diagram
a timeline
a pie graph

B. A web Diagram

Explanation:

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By the way you put the answer in your question you put:

It helps the reader understand why Stanley and his family always have bad luck. It helps the reader to understand why Stanley was sent to Camp Green Lake. It makes the story less interesting and more difficult for the reader to follow. It makes the story more predictable and easier for the reader to understand.

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