Which of the following are homologous organs

Options

A. Wings of butterfly, wings of flying fish and wings of bird
B. Tail of scorpion, tail of bird and tail of monkey
C. Sting of honey bee, sting of scorpion and poison fangs of snakes
D. Paddles of whale, front legs of horse and arms of man

Answer

D

Explanation

Paddle of whale, front legs of horse and arms of man have common ancestory i.e. mammals but have different function.