A.School courses.
B.Various activities.
C.Curiosity and uncertainty.
D.Psychological techniques.
A.Copyright protects only the original expression of ideas.
B.Copyright is only applicable to certain forms of work.
C.Copyright attaches only to fixed forms in a fLxed medium.
D.Copyright recognizes the rights of only one author.
A.The United States and Australia.
B.The United States and Canada.
C.Spain and Canada.
D.Spain and France.