During the Early Stages of Sporulation in Bacillus Subtilis,________ Is $\sigma$

During the early stages of sporulation in Bacillus subtilis,________ is active in the forespore and ________ is active in the mother cell.

A) $\sigma$ ^E; $\sigma$ ^F
B) $\sigma$ ^K; $\sigma$ ^F
C) $\sigma$ ^F; $\sigma$ ^K
D) $\sigma$ ^F; $\sigma$ ^E