A Survey of Automobiles Parked in Student and Staff Lots

Multiple Choice

A survey of automobiles parked in student and staff lots at a large university classified the brands by country of origin,as seen in the table.
What is the marginal distribution of origin?

A) 52% North American,13% European,35% Asian
B) 56% North American,10% European,34% Asian
C) 54% Students,46% Staff
D) 107% North American,16% European,54% Asian
E) 48% North American,16% European,36% Asian