Cupid is doing research about relationships between heterosexual humans' heights and whether they couple up and get married.

He has collected data about 40 heterosexual married couples, and asked each of the 80 people to rate his or her spouse as being of "short height" or not. Among these couples:

• 8 couples had both rate their spouses as short

• 4 couples had only the female rate her spouse as short

• 20 couples had only the male rate his spouse as short

• 8 couples had neither rate his or her spouse as short

Cupid suspects that males are more willing to take a "short" spouse, and is running McNemar's Test to show that.

What is the p-value?

A. 0.05%

B. 0.15%

C. 0.25%

D. some (unknown) number greater than 50%