A. vainglorious
B. indignant
C. triumphant
D. disturbed
crestfallen : sad and disappointed.
vainglorious : excessively proud of oneself or one’s achievements.
indignant : feeling or showing anger or annoyance at what is perceived as unfair treatment.
triumphant : having won a battle or contest; victorious.
disturbed : having had the normal pattern or functioning disrupted.
Antonym of crestfallen is triumphant