Banner-tailed kangaroo rats, Dipodomys spectabilis, are rodents that feed on seeds and are endemic (found only in) to the deserts of the southwestern United States. Which of the following is the BEST description of their niche?

A)seed-eating rodents that can tolerate the intense heat and dryness in the southwest deserts
B)found in parts of Arizona, New Mexico, Texas, and Mexico
C)found primarily in Sonoran and Chihuahuan deserts
D)found only in arid habitats
E)found primarily in areas with relatively heavy soils