The correct answer is enforcing mandatory infectious disease training in hospitals because in that way others can help anyone that is having problems with infections or disease but they will need enough practice for that.
C is an incorrect answer because they are doing training in hospital on how to treat it, with overseeing they would not be so helpful to others.
B is an incorrect answer because even though that something is safe some people can have allergic reactions or some other disease.
Ritalin with other types of stimulants causes overactive eye movement. Ritalin belongs to a group of stimulants called Methylphenidate not only this but others such as cocaine,nicotine etc
