题目内容：
The methods adopted from different studies can be very different, then what is the common guiding principle for introducing research methods in an AP despite the differences?
A.The methodology has to include experimental procedures and the simulation platform.
B.The methodology has to include both qualitative methods and quantitative methods to guarantee the reliability of the research.
C.Comparative analysis and a critical review of literature are the shared methodologies of all kinds of studies.
D.The common guiding principle when one introduces the methodology of an AP is that the speaker is expected to justify why the particular methodology is the most suitable one for the current research.
参考答案：