The correct option is D Indigence
The word 'affluence' refers to the state of having great deal of money.
Option A, indigence refers to a state of extreme poverty.
Option B, opulence refers to great wealth and luxuriousness.
Option C, sorrow refers to a feeling or display of deep distress.
Option D, exuberance refers to the quality of being full of energy, excitement and cheerfulness.
Thus, according to the meaning, the word 'indigence' is the opposite of the word 'affluence'.