6982. That young is quite sanguine about the result of his competitive examination.

✅ The correct answer is option D.
depressed : (of a person) in a state of unhappiness or despondency.

pessimistic : tending to see the worst aspect of things or believe that the worst will happen.

anxious : feeling or showing worry, nervousness, or unease about something with an uncertain outcome.

optimistic : hopeful and confident about the future.

sanguine : optimistic or positive, especially in an apparently bad or difficult situation.

Synonym of sanguine is optimistic