B - When many individuals of the same species are available for mating.
And
C - When the individuals live in a stable environment in which they thrive.
A : a car driving down a hill
Human muscle cells also use fermentation. This occurs when muscle cells cannot get oxygen fast enough to meet their energy needs through aerobic respiration. There are two types of fermentation: lactic acid fermentation and alcoholic fermentation. Both types of fermentation are described below.
