Which of the phrases given below the sentence should replace the word/phrase given in underline
in the sentence to make it grammatically correct? If the sentence is correct as it is given and no correction is required, select 'No correction required' as the answer.
House flies that hatch in summer live only about three weeks, but they who
hatch during winter live longer than 6 months.
- than those
- but those who
- than they who
- but those that
- No correction required