A Poll Was Taken Of $100$ Students at a Commuter Campus to Find Out How They

Multiple Choice

A poll was taken of $100$ students at a commuter campus to find out how they got to campus. The results were: $41$ said they drove alone. $30$ rode the bus. $28$ rode in a carpool. $6$ used both carpools and rode the bus. $9$ used both a carpool and sometimes drove alone. $8$ used buses as well as drove alone. $4$ used all three methods. How many are A and C, but not B (Region IV) ? A = {people who drive alone} B = {people who ride the bus} C = {people who carpool} Use the figure (with Regions I to VIII) to answer the question.

A) 9 students
B) 4 students
C) 20 students
D) 8 students
E) 5 students