Apply the Distributive Property $7(3 a-2 b)$ A) $21 a-10 b$ B) $21 a-2 b$

Multiple Choice

Apply the distributive property. Simplify when possible. $7(3 a-2 b)$

A) $21 a-10 b$
B) $21 a-2 b$
C) $21 a-14 b$
D) $10 a-9 b$
E) $21 a-4 b$