Marx Adopted Hegel's Dialectic, but Marx Differed from Hegel in One

Marx adopted Hegel's dialectic, but Marx differed from Hegel in one vital respect since Hegel did not contend that:

A) history, indeed all reality, is necessary, logical, and deterministic.
B) all change comes through the clash of antagonistic elements.
C) material conditions were the primary determinants of social change.
D) history cannot happen any differently from the way it has happened.