preference vs option

preference and option both are nouns.

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

As nouns, option is a hypernym of preference; that is, option is a word with a broader meaning than preference:

Other hypernyms of preference include alternative, choice.

preference (noun)	option (noun)
grant of favor or advantage to one over another (especially to a country or countries in matters of international trade, such as levying duties)	the act of choosing or selecting
the right or chance to choose	one of a number of things from which only one can be chosen
a predisposition in favor of something	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
a strong liking