#### Answer

true

#### Work Step by Step

RECALL:
$E \subseteq C$ if all elements of $E$ are also elements of $C$
Note that the elements of $E$, 3 and 7, are also elements of $C$.
Thus, the given statement is true.

Published by
Pearson

ISBN 10:
013421742X

ISBN 13:
978-0-13421-742-0

true

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