Answer: Gymnast
Step-by-step explanation:
Self-evaluation maintenance model is the concept that determines about how a person tends to get influenced through performance of other person and then assess themselves through it. Behavior of person is impacted by this model for self-evaluation.
According to the question, Sally will more likely opt gymnast to become her friend as she will evaluate herself to become someone about which she knows nothing as per seen view and performance of gymnast. She knows about singing , therefore she might not be interested in it as per assessment.