Answer: Option B
Explanation:
Facial expressions speaks a lot about feelings and emotions. Sadness and joy can only be expressed obviously through facial expression, no matter how you tend to hide such feelings.
On the case of Ariana, she expressed are emotion side when she heard the news, and as the passage said ,her eyes was widen in disbelief and tears began to flow, these facts alone are facial and expresses are emotion state. This is why option B is the best answer.