Final answer:
The correct way to repair the mismatch of New Strand C and Template T is by pairing it with a guanine (G) on the template strand, so the answer is New Strand C, Template G.
Step-by-step explanation:
The question relates to the base pairing rules in DNA. When repairing the mismatch of New Strand C and Template T, the correct choice is New Strand A, Template T. This is because adenine (A) pairs with thymine (T) following the base pairing rules within DNA replication and transcription. Therefore, following the information given that A pairs with T and C pairs with G, if the new strand has a cytosine (C), it should properly pair with a guanine (G) in the template strand. The correct way to repair the mismatch is option 2) New Strand C, Template G.