I believe it is the first one. A. Round.
The verb, I assume, is "flew" and the tense is A. past.
if it was any of the other options, "fly: would be in a dfferent form :
B. present
he flies
C. present
<span>
participle
he did something, flying
D. past participle
he has flown
</span>
Many of the graduates got employment last year and they are on job now.
Follow what the teachers say.