Which of the following will lead to speciation? select one of the options below as your answer. a. variation in gene pool b. lack of mutations c. absence of natural selection.

The answer is A. Variation in gene pool
Speciation is a formation of a new species during the evolution line. When there is a variation in a gene pool, a unique combination between genes could be formed during the mating process. This will create an offspring with unique gene pool that will lead to speciation