Answer:
The sentence that contains a visible action verb is Nicole helped Tamara with her French homework.
Step-by-step explanation:
Action verbs represent physical action or the performance of an activity or a task, while stative verbs refer to feelings, states, and thoughts, option C is the only one that does not talk about a mental process that makes "helped" the verb in this sentence and active verb, the verbs in the other sentences are stative verbs.