Why can you can conclude that the poem the unknown citizen is written in the ironic mode?

it uses exaggeration to make a point.

it was written to trick the reader with a surprise ending.

there is no hero and the nameless citizen is praised for conformity.

the theme of the poem is expressly stated in the fist few lines.

C. There is no hero and the nameless citizen is praised for conformity.

covert: hidden or secret

candid: truthful and straightforward

what i get from these phrases is covert means undercover or underground and that's where the flower is in april. on the other hand, may is the month where flowers start to bloom and thats the reason why candid is being used as a word to describe the blossoming period of a flower.

hope this answer you.