The correct answer to this open question is the following.
Although the question does not include options, we can say the following.
Shilah is assigned a small group project. She groans when the teacher announces that the project will be given a single group grade (and that she cannot receive an individual grade) because she knows that working in teams or groups is likely to cause conflicts and problems.
And this is a continual occurrence in many classrooms when the teacher asks students for teamwork and announces that the grade would not be individual but is going to be a group grade. Students know each other and know who is a hard worker and who is lazy.
In this case, Shilah knows that some of the group members are known to be lazy and do not commit to the group effort. And sometimes students like Shilas have to do extra work or the work of others in order for the group to have a good grade.
Answer: Accommodation and convergence
Explanation: accommodation and convergence is a depth cue associated with reflex action of the eye, that is, the involuntary movement of the eye in response to a particular stimulus. Accommodation convergence explains the behavior of the eye that is, changes in shape of the lens and size of pupil with respect to the distance of objects from the eye.
As objects get closer to the eye, the eyes move inward and feels like eye muscles are working. When the objects recedes the muscles become relaxed.