Answer:
The correct answer is - There is quite a bit of personal animosity between the two and loyalties within the group are split.
Step-by-step explanation:
In this description, there is a potential risk stated by that there is quite a bit of personal rivalry or enmity among them which cause a split in a group between two and loyalties to the both. This risk will lead to cause a negative impact on their goal of getting a grade due to split. This animosity will harm their study as a group.
Thus, the correct answer is - There is quite a bit of personal animosity between the two and loyalties within the group are split.