selection vs option

selection and option both are nouns.

Word	Noun	Adjective	Verb	Adverb
selection	Yes	No	No	No
option	Yes	No	No	No

As nouns, selection and option are synonyms defined as:

Other synonyms of selection include choice, pick.

selection (noun)	option (noun)
the act of choosing or selecting	the act of choosing or selecting
the person or thing chosen or selected	one of a number of things from which only one can be chosen
a passage selected from a larger work	the right to buy or sell property at an agreed price; the right is purchased and if it is not exercised by a stated date the money is forfeited
an assortment of things from which a choice can be made
a natural process resulting in the evolution of organisms best adapted to the environment