The Difference Between a Point Biserial Coefficient and a Normal

Multiple Choice

The difference between a point biserial coefficient and a normal Pearson correlation coefficient is that

A) a point biserial correlation is based on two continuous variables.
B) a point biserial correlation is based on one dichotomous variable and one continuous variable.
C) a point biserial correlation is based on two dichotomous variables.
D) the kind of variable has nothing to do with the issue.