31) Scientists struggled for decades to synthesize (make) RNA in the laboratory despite the fact that they knew what all the basic building
blocks (chemical elements and molecules) were. This problem of not being
able to artificially create RNA demonstrates *
A. how baking complex foods in a commercial kitchen without any previous cooking
experience can lead to disastrous results
B. that scientists were not trying hard enough in the early days of abiogenesis
research and should probably have just given up
C. how dependent a particular outcome is on a very specific set of events occurring in
just the right order and under just the right conditions.
D. how any outcome is possible under any set of conditions.

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.