Answer:
A - Anxiety; defense mechanisms.
Step-by-step explanation:
To prevent anxiety, related to a failure to satisfy oneself, the id and superego, it's common to develop and use defense mechanisms. The American Psychological Association (APA) defines anxiety as "an emotion characterized by feelings of tension, worried thoughts and physical changes like increased blood pressure." The defense mechanisms, which may vary from one person to the next, are ways of relieving that anxiety and relaxing the tension, the constant monitoring of one's future and worrying.