GM and Hyundai Offer Certain Car Models That Directly Compete

GM and Hyundai offer certain car models that directly compete with each other.Hyundai is able to produce their models at a lower cost while providing similar value at the same time.It can be said that:

A) GM and Hyundai have both achieved differentiation parity and competitive advantages.
B) GM has achieved differentiation parity and a competitive advantage over Hyundai.
C) Hyundai has achieved differentiation parity and a competitive advantage over GM.
D) Neither GM nor Hyundai have achieved differentiation parity since they are not in the same strategic group.