Which two sentences does the author use to support the overall argument with facts?

1) Statistics show that most vaccines are more than 90% effective in preventing diseases.

2) Ultimately, people should take the time to educate themselves about the pros and cons of vaccines.

3) Polio and smallpox are two examples of diseases that have been eliminated through widespread vaccination.

4) However, when people are not vaccinated, they are at risk of catching diseases that others are immune to.

5) These people can also spread contagious diseases and put the entire community at risk.

1) Statistics show that most vaccines are more than 90% effective in preventing diseases.

3) Polio and smallpox are two examples of diseases that have been eliminated through widespread vaccination

Explanation:

Sentence 1 and 3 are the ones stated more objectively and supported with facts.

In sentence 1, author supports the argument by referring to statistics and the effectiveness of vaccines in preventing diseases (90%).

In sentence 3, author supports the argument with facts that polio and smallpox have been eliminated by widespread use of vaccines.

However, sentences 2, 4, and 5 are very subjective and is based on author's opinion.