Fed up of social atrocities, she finally decided to lead a sequestered life.

Answer: Option D

Virtuous : having or showing high moral standards.
Bold : (of a person, action, or idea) showing a willingness to take risks; confident and courageous.
Enlivened : make (something) more entertaining, interesting, or appealing.
Secluded : keep (someone) away from other people.
Sequestered : (of a place) isolated and hidden away.

Synonym of Sequestered is Secluded