C is the safest answer you wouldn't want to send personal info
Reading people. Simply because when you read people you are watching to see how the act, what they like to do, who they hang around, who they are, how they talk, walk, ect. You can sometimes do this before deciding on who you might want to be friends with.It helps a lot. I hope my answer helped you
Answer: B: Contact between infected saliva and an open wound.
Explanation: It gets in your blood stream. For example, sharing needles.
Know your limits meaning do force yourself to do more knowing you can’t , and stretch first
