The answer is b are expensive
STDs are infections spread from person to person during sexual contact.
Okay well..Let's say that you were in the hospital because you fell down some stairs and you broke your leg..The doctor would hand you a treatment plan form that states what they are going to do to help treat you.
Basically, a treatment plan form is a form that tells you what you need to do/what is going to happen to make you well again.