Factor the GCF Out of the Given Expression $$5 x ^ { 2 } + 30 x$$

Multiple Choice

Factor the GCF out of the given expression.
- $$5 x ^ { 2 } + 30 x$$

A) $5 x ( x + 6 )$
B) $x ( 5 x + 30 )$
C) $5 x ^ { 2 } ( x + 6 )$
D) $5 x ( x + 30 )$