Which class of point mutation produces a product with the same amino acid sequence as the wild-type polypeptide?

The correct answer is - silent.

Explanation:

Silent mutation is a point mutation that takes place by a single change in a single base nucleotide of nucleic acid and it may or may not change the aminoacid sequence as the wild type protein.

This does not result in any phenotypic or functional change in the protein of the organism. It is a class of point mutation. This change can be substitution in base.

your spelling is a little off : ]