Which piece of evidence in this passage supports the text’s central claim?

Jenner had the idea of spreading cowpox intentionally.
Jenner figured out that cowpox can be prevented.
Jenner decided that people should have smallpox before they have cowpox. Jenner thought that cowpox could not be transmitted.

Which is an example of finding common ground when addressing a counter argument? a. products with genetically modified organisms (gmos) in them are frankenfoods that are unnatural, dangerous, and foul tasting. b. it’s really not important that some people feel texting while driving isn’t a big deal; it’s a fact that it’s dangerous and should be illegal. c. while both sides agree that processed foods are more convenient, the damage they do to a person’s health should not be ignored. d. testing on animals has produce several lifesaving vaccines and medicines that have saved countless human lives.