Answer:
Adjustment Disorder refers to a condition in which a person experiences problem to respond to stressful events.
Explanation:
The main reason for Melissa to face adjustments problems is due to lack Adjustment Disorder. Stress is the main symptom, that makes Melissa feel low in understanding social situations and also have difficulties in handling new situations without adequate risk. Feeling sad or hopeless at times, relates to difficulty in coping with a significant psychosocial stressor.