Statement (A) : Thoracic vertebrae, ribs and sternum maks a ribcage.
Reason (R) : The ribcage protects heart, large blood vessels and lungs.
a. Both A and R are true and R is correct explanation of A
b. Both A and R are true but R is not correct explanation of A
c. A is true but R is false
d. A is false but R is true