Step deformity of the Mandibular body fracture may due to.. Upward pull of masseter and temporalis

Step deformity of the Mandibular body fracture may due to:
a. Forward pull of lateral pterygoid muscle.
b. Upward pull of masseter and temporalis. ***
c. Toward pull of medial pterygoid muscle.
d. Downward pull of geniohyoid and myalohyoid.