We can define cult in a few different, but similar, ways:
Cult is <em>"a system of religious veneration and devotion directed toward a particular figure or object."</em>
Cult can also be defined as <em>"a relatively small group of people having religious beliefs or practices regarded by others as strange or sinister."</em>
And finally, a Cult can also be: <em>"a misplaced or excessive admiration for a particular person or thing."</em>
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All the 3 definitions seem to nicely fit the premise in the question.
The correct answer is B. Charles Darwin. Darwin is the author of the origin of species and the author of the theory of natural selection, which can be desribed as the change over time due to struggle for resources.
