The Main Issue in the Reneging on a Promise Case

The main issue in the Reneging on a Promise case is:

A) Should the student who accepted an offer from one CPA firm back off from that promise in order to accept the offer of another firm deemed more preferable to the student
B) Should Regas back off from the dating relationship she developed with Giles
C) Should the CPA firm renege on its offer of employment to a student after realizing it made one offer too many to student candidates for staff positions
D) Should Tybell quit the firm because of conflicts with his superiors