”Joyous toiling” is an example of?

UNSEEN POETRY AND PROSE

Read the poem and answer the question

At the onset of the rain
The drought-stricken land
Suck up the wetness
And the gates to the field
Are flung widely open.
It is the signal for planting!
It is time for joyous toiling!
At various times of day
The hard and erect hoe
Would thrust and dig deep
Into the receiving wet soil.
Seeds on different quantities
Seeds of varying potency
Are broadcasted in layers
Into the womb of the earth
With time and much labour
The seed now transformed
Blossoms and grows into new life!

A. onomatopeia
B. oxymoron
C. irony
D. metaphor

Correct Answer: Option C