Tobacco is
a. created in laboratories
b. obtained from plants
c. an animal by-product
d. free of harmful components

b. obtained from plants

Explanation:

Tobacco is a plant native to the American continent that has large leaves, flowers arranged in a cluster and a fruit that houses numerous seeds. It is characterized as a narcotic plant because of the presence of nicotine. The leaf of the plant and the product obtained from it are also known as tobacco. It is important to note that tobacco is stimulating: it can increase blood pressure and generate tachycardia. In addition, because of the substances it contains, it can cause addiction.

this disease is :

* endemic (present in a defined area that is a village)

* a bacterial infection (treated with antibiotic)

* communicable by contact (by the hands)

manu-porterage is the most common mode of transmission, it transmits germs from one individual to another via the hands. this concerns infections of exogenous origin.

endemic disease, or endemic disease, refers to a disease that is constantly present in a given population, often tied to a specific geographic origin, as opposed to a pandemic that is not a sporadic disease.

antibiotics are molecules that have the property of killing (bactericidal) or limiting the spread (bacteriostatic) of bacteria.