selection

A process by which heritable traits conferring survival and reproductive advantage to individuals, or related individuals, tend to be passed on to succeeding generations and become more frequent in a population, whereas other less favourable traits tend to become eliminated; the differential survival and reproduction of phenotypes.

The process or act of selecting.

"The large number of good candidates made selection difficult."

Something selected.

"My final selection was a 1934 Chateau Lafitte."

A variety of items taken from a larger collection.

"I've brought a selection of fine cheeses to go with your wine."