Sets A, B, and C Are Given $\mathrm { A } \cup \mathrm { C }$

Multiple Choice

Sets A, B, and C are given. Find the indicated set.
A = {-8, -3, -1, 2, 5}, B = {-3, 2, 5, 7}, and C = {-1, 4, 9}
- $\mathrm { A } \cup \mathrm { C }$

A) $\{ - 8 , - 3 , - 1,2,4,5,9 \}$
B) $\{ - 1 \}$
C) $\{ 4,6,7,9 \}$
D) $\{ - 3 , - 1,2,5,7,9 \}$