Question

the vaccine will not cause disease because the germ is too weak to copy itself and release new germs in the body. how does this detail develop the articles central idea? a by describing the process of a disease in people once they are infected with a disease b by suggesting that vaccines are effective in people who are too weak to fight off a disease c by explaining how a vaccine introducing a germ into a body will not cause a person to get sick d by showing that vaccines are not effective unless the germ that is used is strong enough to copy itself

Explanation:

The text specifically states the vaccine - containing a weak germ - won't cause disease. Option C directly aligns with this as it explains how a vaccine introducing a germ into the body won't make a person sick. Option A is about the disease process in infected people, not about vaccines. Option B is about vaccines for weak people fighting off disease, which is not the focus here. Option D is contrary to what the text says as it implies vaccines need a strong germ to be effective.

Answer:

C. by explaining how a vaccine introducing a germ into a body will not cause a person to get sick