A Defining Characteristic of Biological Clock-Controlled Rhythms Is That Cycles

A defining characteristic of biological clock-controlled rhythms is that cycles

A) continue in the absence of environmental cues such as light-dark and temperature cycles.
B) operate on at least a circannual rhythm rather than simply a circadian rhythm.
C) operate on a single period within a particular species, such as circalunidian rhythm.
D) require the presence of environmental cues such as light-dark and temperature cycles.