The correct answer is: B. All natural phenomena have unnatural causes.
A. We can know nature is a basic component of research because research is the process of acquiring knowledge about the natural world.
C. Knowledge is better than ignorance is a basic component of research because research is motivated by the desire to increase knowledge.
D. Knowledge is derived from observation of nature is a basic component of research because research is based on the observation of the natural world.
B. All natural phenomena have unnatural causes is not a basic component of research because it is a statement about the nature of reality, not about the process of research.