Which of the following is not a vestigial organ?

Q.

Which of the following is the correct group of vestigial organs in man ?

a) Nictitating membrane, ear muscles, eyelids and coccyx

b) Appendix, coccyx, ear muscles and elbow joint

c) Wisdom tooth, coccyx, body hair and ear muscles

d) Wisdom tooth, body hair, Nictitating membrane and vermiform appendix

Q. How many of the following statements is/are completely correct regarding the vestigial organs found in humans?

A. Coccyx, vermiform appendix, excessive body hair are vestigial organs.
B. Long and pointed canine teeth, coccyx, vermiform appendix are vestigial organs.
C. Pelvic girdle, third molars (wisdom teeth), nipples in males are vestigial organs.
D. Nictitating membrane, auricular muscles of pinna, third molars (wisdom teeth) are vestigial organs.

Q. Human beings have vestigial vermiform appendix. The ancestors must have been