Answer:
B). Supervise the training session.
Step-by-step explanation:
As per the question, the assistant strength and conditioning professional must 'supervise the training session' next. Since he has been called earlier, he must administer and communicate with the training session, how it is being scheduled, assessment of their confidence, techniques, and abilities. This would function as the preparatory stage for conducting the supervision of resistance in the training session more effectively and work accordingly to improve their athletic performance. Thus, option C is the correct answer.