Let $U=\{q, r, s, t, u, v, w, x, y, z\} ; A=\{q, s, u, w, y\} ; B=\{q, s, y, z\} ;$

Multiple Choice

Let $U=\{q, r, s, t, u, v, w, x, y, z\} ; A=\{q, s, u, w, y\} ; B=\{q, s, y, z\} ;$ and $C=\{v, w, x, y, z\}$ . List the members of the indicated set, using set braces.
- $(A \cup B) ^{\prime}$

A) $\{\mathrm{s}, \mathrm{u}, \mathrm{w}\}$
B) $\{t, v, x\}$
C) $\{\mathrm{r}, \mathrm{s}, \mathrm{t}, \mathrm{u}, \mathrm{v}, \mathrm{w}, \mathrm{x}, \mathrm{z}\}$
D) $\{r, t, v, x\}$