In a pre-experimental design, the main limitation is ________.
A. the lack of a dependent variable
B. the lack of control over extraneous variables
C. the complexity of the design
D. the long duration required to conduct the study
E. difficulties in replication
Choose the correct answer from the options given below:
1
A Only
2
B, C, and D Only
3
C, D, and E Only
4
B, and E Only