A report says that "the median credit card debt of American households is zero." We know that many households have large amounts of credit card debt. Explain how the median debt can nonetheless be zero.

Choose the most plausible explanation:

A. The median debt can nonetheless be zero because it is not a resistant measure.

B. The median debt is zero because the distribution is left-skewed.

C. The median debt is zero because the first and the third quartiles are probably equal.

D. The median debt is zero because more than half of credit card debts are zero.