What Situation Is Responsible for Certain Practical/vocational Nurse Graduates Being

What situation is responsible for certain practical/vocational nurse graduates being unprepared to work in a behavioral/mental health clinical setting?

A) Historically, only RNs have been permitted to work with the mentally ill.
B) Some practical/vocational nursing programs do not include a specific mental health nursing component.
C) Practical/vocational nursing students are too fearful of mentally ill patients to learn enough during their programs.
D) Because the number of mentally ill people in the United States is declining, little emphasis needs to be placed on that portion of the educational program.