Sentence Correction - Verbal and Reasoning

Directions to SolveWhich of phrases given below each sentence should replace the phrase printed inboldtype to make the grammatically correct? If the sentence is correct as it is, mark 'E' as the answer.
Q1:

She cooks, washes dishes, does her homework and then relaxing.

A relaxing then

B then is relaxing

C relaxing is then

D then relaxes

E No correction required

ANS:D - then relaxes

No answer description is available.