Backbone: (i) is made up of many small bones (ii) encloses and supports the spinal cord (iii) extends from skull to tip of tail (iv) forms the main supporting axis
Choose Your Option
A. (i), (ii), (iii) are correct
B. (ii), (iii) are correct
C. (i), (iv) are correct
D. (i), (ii), (iii) and (iv) are correct