Question

23 there are thoracic vertebrae; whereas, there are cervical vertebrae. a 7; 5 b 12; 5 c 5; 12 d 12; 7

Explanation:

In human anatomy, the thoracic vertebrae are 12 in number and are located in the chest region. The cervical vertebrae are 7 in number and are located in the neck region.

Answer:

D. 12; 7