What is the correct rank order for relative energetic cost (most to least)of the primary nitrogenous wastes used by different animals?

A)ammonia $\rarr$ urea $\rarr$ uric acid
B)uric acid $\rarr$ urea $\rarr$ ammonia
C)urea $\rarr$ uric acid $\rarr$ ammonia
D)ammonia $\rarr$ uric acid $\rarr$ urea
E)urea $\rarr$ ammonia $\rarr$ uric acid