Answer:
C). Occam’s Razor Replicability
Explanation:
As per the question, the 'Occam’s Razor replicability' principle of critical thinking is being demonstrated here as it possesses the ability to be 'reproduced'(repeated) successfully.
In the given description, the 'similar findings or results of the research over and again'('spreading out our learning over longer intervals is much more effective than cramming our learning into shorter periods of time) reflect the Occam's Razor replicability principle. This aspect of critical thinking states that an experiment must ensure that the variables used in the test must possess the ability to produce similar results over and again which helps in proving the reliability of the conclusion. Therefore, option C is the correct answer.