option vs decision making

option and decision making both are nouns.

Word	Noun	Adjective	Verb	Adverb
option	Yes	No	No	No
decision making	Yes	No	No	No

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

Other hypernyms of option include deciding.

option (noun)	decision making (noun)
the act of choosing or selecting	the cognitive process of reaching a decision
one of a number of things from which only one can be chosen
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