Final answer:
A synonym for 'an underhanded attack on my good name' is 'a deceitful attack on my good name'. 'Underhanded' suggests sneaky or deceitful behavior, making 'deceitful' the most appropriate synonym.
Step-by-step explanation:
The synonym for "an underhanded attack on my good name" is (C) a deceitful attack on my good name. In this context, "underhanded" implies deceit or dishonesty, and choosing the option "C" aligns with the negative connotations associated with underhandedness.
It suggests that the attack on one's good name is characterized by cunning or deceitful tactics, rather than being direct or fair. This choice emphasizes the manipulative nature of the assault on one's reputation, highlighting the use of cunning and deception to tarnish the individual's good standing or character.