Answer:
c
Step-by-step explanation:
The correct answer is C. a besoin de.
The verb phrase a besoin de means "needs" in French.
Therefore, the complete sentence is Elle a besoin de son livre, which translates to "She needs her book."
The other verb phrases are not correct in this context.
A peur de means "is afraid of."
A envie de means "wants."
A l'habitude de means "is used to."