The following are differences between amphibians and reptiles EXCEPT

A)amphibians have smooth non-scaly skin,whereas reptiles are covered with scales and their skin is dry.
B)all reptiles respire by the use of lungs,while amphibians use small lungs supplemented by cutaneous respiration.
C)amphibian eggs are laid in water,but reptiles do not require water for reproduction.
D)reptiles are ectothermic,while amphibians are endothermic.