Which of the Following Statements BEST Exemplifies a Null Hypothesis

Which of the following statements BEST exemplifies a null hypothesis?

A) There is no relationship between gender and jury verdict.
B) Men are more likely than women to vote to convict on juries.
C) Women are more likely than men to vote to acquit on juries.
D) Men are more likely to hang a jury (create a jury that cannot arrive at a verdict) than are women.
E) Men are more likely than women to vote to convict and women are more likely than men to vote to acquit on juries.