Bhavana observed an animal in the ZOO. She guessed it must be the ovipa-rous animal. What will be the reason? 

a) It has feathers on its wings 

b) No external ears appear 

c) Seen hair on the skin 

d) It has tail

Which of the above is suitable reasons? 

A) a and c 

B) b and d 

C) d only 

D) a and b


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option a and b is correct