The most accurate statement is Inclusion and exclusion criteria are always needed in some form.
Inclusion criteria are the prospective subjects characteristics that should be taken into consideration in the study.
Exclusion criteria are set of predefined definitions commonly used to identify subjects who will not be included or those characteristics that disqualify prospective subjects for the study to be included
It seems like it's long term goals.
1.bad behavior at school 2.bad attitude at home3.get involve in drugs
First one is D. I think because, and then, also this and that. then
