Camels Inhabit Water-Deficient Environments and Exhibit an Evolutionary Adaptation That

Camels inhabit water-deficient environments and exhibit an evolutionary adaptation that allows them to absorb more water than their ancestors that dwelled in water-rich environments.  The diagram below shows the structure of two nephron types present in the kidneys of camels and other mammals. How would the number of cortical nephrons differ from the number of juxtamedullary nephrons in camels and their ancestors?  Camels would be expected to have:

A) a lower number of juxtamedullary nephrons and a higher number of cortical nephrons compared to their ancestors.
B) a higher number of juxtamedullary nephrons and a lower number of cortical nephrons compared to their ancestors.
C) a similar number of juxtamedullary nephrons and a lower number of cortical nephrons compared to their ancestors.
D) a similar number of juxtamedullary nephrons and a higher number of cortical nephrons compared to their ancestors.

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