Question

The human mouth contains lots of bacteria. Usually, these bacteria are harmless. If plaque, which is full of bacteria, is allowed to build up on the teeth, tartar may form, which gives the bacteria a place to hide and reproduce. Eventually, the bacteria can spread down the entire length of the tooth to the root, where they start attacking the bone. This condition in which bacteria attack the bone that holds the teeth is known as periodontitis. Bacteria can destroy enough of the bone that a person's teeth start falling out. Which of these most accurately describes how a person develops period

Answer 1

purely through genetics
through infection by new kinds of bacteria
through exposure to infected people
through poor dental hygiene

Answer 2

YOU MY CUIZN ITS ANTHONY

Answer 3

Through poor dental hygiene.