The species that has the same predators as species c would benefit the most
Chromosome mutations can result in changes in the number of chromosomes in a cell or changes in the structure of a chromosome. Unlike a gene mutation which alters a single gene or larger segment of DNA on a chromosome, chromosome mutations change and impact the entire chromosome. Key Takeaways: Chromosome Mutations
The theory developed by Wegener that the continents of the Earth were once a part of a single big super-continent is based on his observations that these continents fir together as a part of the jig-saw puzzle. And these observed continents have similar flora and fauna along with similar rock formations. Such a derivation of theory from observations is an inductive reasoning.
Hence, the answer is 'inductive reasoning'.