The algebraic expression can be simplified.

(4 x³+2 x²-x+1)-(3 x³+2 x-5)

Which expression is equivalent to this expression?
(A) x³+2 x²-3 x+6
(B) x³+2 x²-x-4
(c) 7 x³+2 x²+x-4
(D) 7 x³+3 x²-3 x+6