Determine which answer choice correctly uses commas to punctuate the sentence.

Question

Responses
A My sister who exercises every day is coming over for dinner.My sister who exercises every day is coming over for dinner.
B My sister who exercises every day, is coming over for dinner.My sister who exercises every day, is coming over for dinner.
C My sister, who exercises every day, is coming over for dinner.My sister, who exercises every day, is coming over for dinner.
D My sister, who exercises every day is coming over for dinner.

Answer 1

C My sister, who exercises every day, is coming over for dinner.