If the highest common factor (H.C.F.) of two polynomials is x + 1 and their least common multiple (L.C.M.) is x^2 - 1, what is the product of the two polynomials?
Answer: B. (x + 1)(x^2 - 1)
The product of two polynomials is equal to the product of their H.C.F. and L.C.M. Therefore, the product is (x + 1)(x^2 - 1).