Select the option that can be used as a one-word substitute for the given group of words.

One who does a thing for pleasure and not as a profession

Amateur

The word that can be used as a one-word substitute for "one who does a thing for pleasure and not as a profession" is amateur.

• Performer is a person who performs in public.
• Amateur is a person who does something for pleasure and not as a profession.
• Professional is a person who does something for a living.
• Ascetic is a person who lives a life of self-denial and austerity.

Amateur is the most appropriate word for the given group of words because it specifically refers to someone who does something for pleasure and not for money. It is derived from the Latin word amātor, meaning "lover."