Final answer:
A text with a cause-and-effect structure explains why something occurs.
Step-by-step explanation:
A text with a cause-and-effect structure explains why something occurs. It demonstrates the relationship between a cause and its effect, highlighting the reasons behind an event or phenomenon. In the given text, the author may explain why the actions of Abe at the age of 21 led to the events that followed. For example, the author might explain that Abe, at 22 and 23 years old, made certain choices that resulted in him facing certain challenges or opportunities at 24 and 25 years old.
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