Answer:
3. a disease spread by infected fleas and human parasites
Explanation:
The bubonic plague is transmitted through the bite of an infected flea or exposure to infected material through a break in the skin.
The bubonic plague is a disease spread by inflected fleas and human parasites. Thus the option (3) is correct.
Plague is an infectious diseases which is caused by the Bacteria that is transmitted through fleas. This disease can be deadly if antibodies does not develops. It is also known as Black death.
Bubonic Plague is also a type of a disease caused by the spread of the inflected fleas and human parasites. These fleas develops this infections from the rodents.
Thus the correct option is (3).
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