With no explanation, chose the best option from "A" or "B". Frank works as a cashier at a busy grocery store and is coming off break, and sees an old lady struggling to lift a case of water into her cart. Frank needs to get to the register he works at.

A: Frank ignores the woman and continues up to the register, starting to ring up customers.
B: Frank stops and quickly lifts the case into the woman's cart, before continuing on to the register.
B.