Choose the correctly punctuated sentence: My aunt who lives in Karachi, is a doctor., My aunt, who lives in Karachi is a doctor., My aunt, who lives in karachi, is a doctor., None of these
Choose the correctly punctuated sentence: My aunt who lives in Karachi, is a doctor., My aunt, who lives in Karachi is a doctor., My aunt, who lives in karachi, is a doctor., None of these
Explanation
The correct sentence includes commas around "who lives in Karachi".
This indicates it is a non-essential clause.
It adds additional information about the aunt.
It does not change the main meaning.