Answer:
<em>The correct option is A) </em>
<em>“Some sources were birds, bats, and other types of wildlife. Livestock and pet animals have spread many other diseases.” ( Paragraph 1)</em>
Explanation:
The article ' Animal's role in human diseases' described how different animals serve as a reservoir for viruses and infect humans with these viruses. It explains the simple methods by which zoonotic diseases are transferred from animals to humans.
In the first paragraph of the article, the writer explains that about 75% of novel diseases arise by zoonotic means. He then refers to animals such as birds, bats, pet animals etc as reservoirs which transfer diseases in humans. Hence, the correct option is A.
