Concept:The suffix '-ist' is used to form nouns meaning a person who performs a specific action or profession.Explanation:'Violin' is a musical instrument. Adding '-ist' gives 'violinist', which means a person who plays the violin.Suffix '-am' is not a standard English suffix and does not create a meaningful word.Suffix '-en' is typically used to form verbs from adjectives (e.g., strengthen) and does not fit here.Suffix '-ty' forms abstract nouns (e.g., beauty) and is not suitable for a person who plays an instrument.Only '-ist' correctly indicates a person associated with the violin.Answer:Option C (-ist)