Because of the Ascot woman’s ______, the stick had to be pulled out from the ground.

A．How many native speakers it had in Shakespeare’s time.
B．The number of people with an adequate working knowledge of it.
C．The situations where a common language is needed.
D．The purposes for people to learn a second, language.

A．His poor memory.
B．His fatigue.
C．His lack of diligence.
D．His method.