Dr Jothi Wants to Know Whether Men or Women Are

Dr. Jothi wants to know whether men or women are better drivers and so designs a study to examine this question. Dr. Jothi writes up the plan for the research, including a hypothesis, before beginning the data collection. Which of the following would represent a null hypothesis for this study ?

A) Women will demonstrate better driving ability than men.
B) There will be no differences between the driving abilities of men and women.
C) Age, not sex, will predict the driving ability of the participants.
D) Men will demonstrate better driving ability than women.