Read the following statements and choose the correct option .
(a) Urchordates and cephalochordates are called protochordates
(b) They are primitive vertebrates .

Options

A. Both (a) and (b) are false
B. Both (a) and (b) are true
C. Only (a) is true , (b) is false
D. Only (b) is true , (a ) is false

Answer

C