Saguaro kangaroo rats generally leave watering holes, where food and water are abundant, during the day, while Sonoran kangaroo rats remain near these same watering holes and continue foraging throughout the day. Although sonoran kangaroo rats have larger and more frequent litters, they are generally outnumberred by the Saguaro kangaroo rat

which of the following, if true, would best resolve the appatent paradox described above?
A. several species of successful rodents also leave the streams and watering holes during the day
B. The Saguaro kangoroo rat matures much more slowly than the Sonoran kangoroo rat because of its relatively limited food supply
C. Many of the predators of kangaroo rats, such as falcons and rattlesnakes, are only active around steams during the day
D. Saguaro kangaroo rats are more sensitive to sunlight than are Sonoran kangaroo rats.
E. Sonoran kangaroo rats are reproductive to greater age than are Saguaro kangaroo rats