My friend's voice is moving.

The correct answer should be C. laquelle.

First of all, in the clause, the component of () is the subject and has no affiliation, so the answer can't be A. que and D.Dont

If you use the answer B. qui, the sentence is:

My friend is in a country. The relative pronoun Qui refers to the nearby Tonami. At this time, the sentence means "I see your friend's car is in poor condition." "

In this question, two words with different parts of speech are given, the singular feminine noun "la voiture" and the singular masculine noun "ton ami". In order to clarify the object of "est en mauvais état", we use words that can contain effective numerical features and can be used to refer to words that are at a certain distance from this word.

"I know your name is Mauvaisé tat. "This sentence clearly shows that I saw your friend's broken car."