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In a recent poll of high school students, only $20\%$ of the students said that they did not vote if the school should change the lunch menu. However, a vote count showed that $55\%$ of the student body did not vote if the school should change the lunch menu.

Which of the following types of bias is most likely to have occurred in the poll?

A

Undercoverage bias.

B

Sampling bias.

C

Selection bias.

D

Non-response bias.

E

Response bias.

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