#### Answer

true

#### Work Step by Step

RECALL:
$A$ if all elements of $A$ are also elements of $B$.
Since all elements of $C$ are also elements of $A$, then $\color{blue}{C \subseteq A}$.
Thus, the given statement is true.

Published by
Pearson

ISBN 10:
013421742X

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

true

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