$\mathbf { Find~ A \cup R ~and A \cap R~ for~ the~ sets~ A~ and~ B}$

Multiple Choice

$\mathbf { Find~ A \cup R ~and A \cap R~ for~ the~ sets~ A~ and~ B}$
- $\mathrm { A } = \{ 1,2,3,4,5 \},$ $B = \{ 2,4,6,8 \}$

A) $\begin{array} { l } A \cup B = \{ 2,4 \} \\A \cap B = \{ 1,2,3,4,5,6,8 \}\end{array}$
B) $\begin{array} { l } A \cup B = \{ 2,4 \} \\A \cap B = \{ 1,2,3,4,5,6,7,8 \}\end{array}$
C) $\begin{array} { l } \mathrm { A } \cup \mathrm { B } = \{ 1,2,3,4,5,6,8 \} \\\mathrm { A } \cap \mathrm { B } = \{ 2,4 \}\end{array}$
D) $\begin{array} { l } A \cup B = \{ 1,2,3,4,5,6,7,8 \} \\A \cap B = \{ 2,4 \}\end{array}$