Ostentation is now the life style of big cities.

Answer: Option D

Ostentation : the pretentious or showy display of wealth and luxury, designed to impress.
Ugliness : the quality of being unpleasant or repulsive in appearance.
Poverty : the state of being extremely poor.
Frugality : the quality of being economical with money or food; thriftiness.
Modesty : the quality or state of being unassuming in the estimation of one's abilities.

Antonym of Ostentation is Modesty