Find the Union of the Sets $\{ w , h , a , t , s \} \cup \varnothing$

Multiple Choice

Find the union of the sets.
- $\{ w , h , a , t , s \} \cup \varnothing$

A) $\{ a , s \}$
B) $\{ w \}$
C) $\varnothing$
D) $\{ w , h , a , t , s \}$