Correct option: 3) respectable - this is the most suitable option. As per the context of the sentence we need an adjective here and 'respectable' is the only appropriate option. Receptive - able or inclined to receive ( in-appropriate as per the context of the sentence ) Respective - PARTICULAR, SEPARATE ( in-appropriate as per the context of the sentence ) Respectable - worthy of respect : ESTIMABLE ( most appropriate ) Responsible - liable to be called on to answer Hence, option 3 is the most appropriate option.