Answer:
A). A smile.
Step-by-step explanation:
The expression that would help Jayla to overcome her feelings of disappointment and regret would be 'a smile.' It is psychologically proved that even if a smile or laughter is forced, it is helpful in letting out the neurochemicals from our body which is the key cause of the negative feeling. Thus, smiling will help Jayla in feeling better quickly. Therefore, option A is the correct answer.