Ana Reads in the Track-And-Field Rulebook That an Official Track

Multiple Choice

Ana reads in the track-and-field rulebook that an official track on which she can set a world record must have specific qualities.It must be 400 meters long,in an oval shape,and have a surface that is between 0.5 in.and 1.0 in.thick.The track described in the rulebook is an example of a ____ concept.

A) fuzzy
B) natural
C) formal
D) prototype