Refer to the given table and select the correct option.

Options

A. P could be a mammal that possesses thick subcutaneous fat layer whereas O could be sparrow that has air filled bones.
B. R could be snail that has endoskeleton of bones whereas S could be a reptile that bears poisonous fangs.
C. P could be an invertebrate whose mouth has thick leathery lining for eating spiny shrubs whereas ( could be a migratory bird like ostrich.
D. R could be a vertebrate whose body is divisible into head, visceral hump and foot whereas S could be an amphibious vertebrate.

Answer

A

Explanation

According to the given table animal P could be a polar bear as it has hairs covering its body and undergoes hibernation in winters, animal Q could be sparrow as it has feathers, animal R could be snail as its body is covered with shell and it undergoes aestivation and animal S could be wood frog as it does not have hair, shell or feathers and it undergoes hibernation.