Which of the following statements is true about vaccines? A. Vaccines only work against bacterial disease
B. Vaccines work infecting someone with a dangerous disease
C. Vaccines are yet to be proven safe by scientists.
D. Vaccines work by teaching the bodies immune system to fight off disease

D. A.

Explanation:

does anyone need points just if you need them pleas do not report/ this and go see my profile and go to questions and there go to the questions and answer to get free/ points/.there also people that are doing this are giving me donations and thanks for that real much and go thank them so yeah those donations really help so I can help people that need points and don't report this.this is for a good thing.  

That's the answer too D. A.

we need additional information in order to determine the cause of death for anna garcia. there are at least 3 things with explanation included as to why we need them are as follows: