Let $A = \{ 2,4,5 \}$ And $B = \{ 6,7,9 \}$

Multiple Choice

Let $A = \{ 2,4,5 \}$ and $B = \{ 6,7,9 \}$ . Find $A \cup \bar { B }$ .

A) $( - \infty , \infty )$
B) $\{ 4,9 \}$
C) $\{ 2,4,5,6,7,9 \}$
D) $\varnothing$