Answer:
The correct answer would be d) cancer.
Speciation is a natural phenomenon by which one or more species are formed or evolved from one species.
There are generally four types of speciation namely allopatric speciation (geographic isolation), sympatric speciation (reproductive isolation on native land), parapatric speciation (new niche or habitat), and quantum speciation.
In contrast, cancer refers to the disease in which cells divide uncontrollably.
