Which Terms Must Appear in the Unstated Premise of the Following

Multiple Choice

Which terms must appear in the unstated premise of the following enthymeme? All banks are institutions with government-insured deposits.
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No hedge fund is a bank.

A) banks
B) banks and institutions with government-insured deposits
C) hedge fund and banks
D) hedge fund and institutions with government-insured deposits
E) There is not enough information to determine the answer.