What is an example of the effect of environmental factors on cell differentiation?

A. The plant hormones known
as auxins stimulate cell
elongation in roots and
stems.

B. The sex of turtles is
determined by temperatures
in the nest during incubation

C. The kidneys release more
urine in response to an
increase in blood pressure.

D. The menstrual cycle is
controlled by the hormones
estrogen and progesterone.