The correct answer would be, Social Loafing.
The other in Drew's group are demonstrating Social Loafing.
Explanation:
When people work in group, the individuals usually exert less effort as compared to the effort they put if they work alone. This phenomenon is called as the Social Loafing.
In Social Loafing, people working in groups are more dependent upon others and feel less responsibility of work. They share less efforts and seek equal reward. That is why, group's efficiency is usually seen low.
So when Drew is a hardworking student and the other members of the group know that this project is crucial for Drew, they deliberately put less effort in the project and thus engage in the Social Loafing.
Learn more about Social Loafing at:
https://brainly.com/question/8001474
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