Answer:
A.
Step-by-step explanation:
TB is an infection of the lungs,where the alveolar are attacked by bacteria ( Mycobacterium tuberculosis)leading to cough, with blood stained sputum,chest pain etc.
This Vertebral Column is the common site of T.B .It usually spread through the blood (arterial or venous routes)to the bones ,joints and other other organs in the body.
Generally,TB affects majorly the lungs,where is is called pulmonary TB.Therefore when it spreads to other part od the body it is called extrapulmonary TB.
Specifically, the lower thoracic vertebrae and upper lumbar are the major sites. This condition is called Spinal Tuberculosis,and its major signs is pain sensations at the spine locations described above.
Its symptoms include pain at the spine, stiffness of the vertebra , some degree of deformities