Work Step by Step
$A \subseteq B$ if all elements of set A eqare also elements of set B. Note that all elements of C are also elements of U. This means that $C \subseteq U$. Therefore, the given statement is true.
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.