The scenario described involves replacing a cytosine base with a thymine base during DNA replication, which leads to a change in the DNA sequence. This type of mutation is known as a substitution mutation, as one base is substituted for another.
When a base is changed during DNA replication, it can lead to the incorporation of the wrong amino acid during protein synthesis, which can alter the function of the resultant protein.
Given the options provided, the correct response would be:
Wrong amino acid is produced and attached to a protein resulting in a substitution mutation.