How is leprosy primarily transmitted from person to person?
contaminated toilet seats
shaking hands
blowing nose
sexual intercourse

The correct answer is option - blowing nose.

Explanation:

Leprosy or Hansen's disease is caused by infection with bacteria Mycobacterium leprae. It is an airborne disease that spread by respiratory tract product which is cough or sneeze and blowing nose.

An infected person might not get an infection initially for 5 to 6 years and later develop symptoms.  Symptoms of leprosy include red skin patches accompanied by the sensation, weakness, and numbness in hands and feet.

Thus, the correct answer is option - blowing nose

b. heterotroph

explanation:

substitution is the answer in this case