Hello, Your answer is B) They will reclassify the species in the phylum Phaeophyta.
Explanation:
The species is currently classified in the phylum Chrysophyta because of its physical characteristics. However, after the scientists analyze the species' DNA, they discover that the DNA is most similar to protists in the phylum Phaeophyta. Since the phylogenetic trees are mostly made on the basis of the similarity of the DNA to the DNAs of the species present in a phylum, the species will get reclassified into the Phaeophyta phylum. <em>Hope That Helps!</em>
