PLEASE HELP!!! A mutation occurs during protein synthesis. How will the protein produced be affected?

A) since the mutation causes a new code for a better amino acid, the protein will still function normally.
B) since the mutation causes a new code for the same amino acid, the protein will function normally.
C) since the mutation caused a new code for a better amino acid, the protein will be more powerful when performing its function.
D) since the mutation causes a new code for the same amino acid, the protein will be more powerful while performing its function.