Question 10 knowing she should be excited about her friend's engagement, jessica shows exaggerated excitement when she is told about it. this modification of jessica's expression is likely due to: 1. display rules. 2. the service-task function. 3. an interpersonal gap. 4. microexpression

The correct answer is 1. display rules.
Display rules is a term describing informal rules about the way, the time and the place that a person should express and communicate his/her emotions. These rules are not set since they differ greatly depending on the culture and the society. In this example, Jessica showed exaggerated excitement when hearing about her friend's engagement. This is because according to the display rules these were news that should make her very happy. 

Ithink it would be choice b (county). hope this you!