Which of the Following Items Is Not Considered to Be

Which of the following items is not considered to be one of the advantages of a co-op program for engineering students?

A) Co-op students start full-time work with a higher salary
B) Co-op students start full-time work with more seniority
C) All co-op positions are paid positions
D) The employer is obligated to offer the co-op student an offer of employment