What is the correct way to write sentences 9 and 10?

Responses
A Alex turned to look at, her dearest friend, and a smile curled up on her face.Alex turned to look at, her dearest friend, and a smile curled up on her face.
B Alex turned to look. At her dearest friend, and a smile curled up on her face.Alex turned to look. At her dearest friend, and a smile curled up on her face.
C Alex turned to look at her dearest friend, and a smile curled up on her face.Alex turned to look at her dearest friend, and a smile curled up on her face.
D Alex turned to look at her dearest friend and a smile curled up on her face.

1 answer

C Alex turned to look at her dearest friend, and a smile curled up on her face.