Answer:
D
Step-by-step explanation:
Arrogant - having or revealing an exaggerated sense of one's own importance or abilities
Vain - having or showing an excessively high opinion of one's appearance, abilities, or worth
Smug - having or showing an excessive pride in oneself or one's achievements
Proud - feeling deep pleasure or satisfaction as a result of one's own achievements, qualities, or possessions or those of someone with whom one is closely associated