Which of the following is NOT true concerning “workshop”?

Which of the following is NOT true concerning “workshop”?
A.A workshop is a period of discussion and demonstration of the practical work on a particular subject.
B.A workshop emphasizes practical performance.
C.Many relevant activities like demonstrations and displays may be arranged in a workshop.
D.A workshop implies a higher degree of formality.
正确答案：A workshop implies a higher degree of formality.