The correct answer is B.) An oversized ego
Step-by-step explanation:
The word "ego" refers to ideas and beliefs about own abilities, talents, etc. On the other hand, an oversized ego occurs if the person overestimates his/her abilities, talents, qualities, etc. and due to this, he/she has an arrogant or negative attitude towards others that is the result of overestimating oneself and underestimating others.
JJ is exhibiting an oversized ego because it seems due to his promotion he nows overestimates his qualities while underestimating others; this explains why he does not listen to other workers and he believes his ideas and actions are the only correct ones, which stops him from working with other people. Also, he has an arrogant attitude that is common due to excessive ego.