PharmaSchool GCP Challenge: What's the difference?

Challenge: What's the difference?
Question Number 1
What is usually considered to be the difference between a volunteer and a patient in a clinical trial?
	A	There is no difference
	B	A patient is someone who is not in the trial but someone who is in the trial is called a volunteer
	C	A patient is someone who is in an interventional trial and a volunteer is someone who is in a non-interventional trial
	D	A patient is someone who has the condition under investigation and a volunteer does not have the condition under investigation