Among the following User studies,Chose the one which were conducted in 2000s
A.“User Studies in the Electronic Environment: Review and Brief Analysis
B.What Users Want: An Academic ‘Hybrid’ Library Perspective
C.Anomalous State Knowledg
D.The Transmission of Scientific Information: a user's analysis
1
A and B
2
B and C
3
A and C
4
B and D