River used the Remainder Theorem to find the remainder of (x^3-2x^2-68x-120)divided by(x+2) and got a remainder of 0. What does this mean? A) It means -2 is a factor and x= -2 is a root.

B)It means (x+2) is a factor and x= -2 is a root.

C) It means (x-2) is a factor and x= 2 is a root.

D) It means 0 is a factor and x= 0 is a root.