sampling vs option

sampling and option both are nouns.

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

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

Other hypernyms of sampling include choice, pick, selection.

sampling (noun)	option (noun)
(statistics) the selection of a suitable sample for study	the act of choosing or selecting
measurement at regular intervals of the amplitude of a varying waveform (in order to convert it to digital form)	one of a number of things from which only one can be chosen
items selected at random from a population and used to test hypotheses about the population	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