The correct pronoun in the given French sentence is 'C. me'. Understanding pronouns is crucial in learning French.
Correct Answer: C. me
In the given sentence, 'Tu me téléphones demain?' translates to 'Will you call me tomorrow?'. The appropriate pronoun to use in response is 'me' which corresponds to 'Je te téléphone!' meaning 'I will call you!'
Understanding and using pronouns correctly is essential in French language learning to communicate effectively.