Marco was overwhelmed by the rude customers, but he never loses his A.aplomb
B.apotheosis
C.agitation
D.incipience
E.ineluctability

A. Aplomb
- a·plomb

noun
self-confidence or assurance, especially when in a demanding situation.

#1) How does our pride get in the way of receiving gracefully? #2) How can we overcome it?
1). With a negative connotation pride refers to a foolishly and irrationally corrupt sense of one's personal value, status or accomplishments. Pride can lead us to Seek recognition to exalt ourselves, Treat others unfairly, Accept no responsibility for wrongdoing, Speak constantly without listening, Be only concerned with ourselves.Answer 2). Ways to overcome pride are acknowledging your pridefulness, own up to your mistakes. Lose the defensiveness. Getting rid of self-consciousness, embrace constructive criticism. Stop comparing, and ask more questions.