Remove or Add Parentheses as Indicated $a ( b + c ) - b ( c + a )$

Multiple Choice

Remove or add parentheses as indicated.
-Rewrite $a ( b + c ) - b ( c + a )$ without parentheses.

A) ac - bc
B) $a c + b c$
C) $a c + b c + 2 a b$
D) $2 a b + a c - b c$