Answer:
D. Organism A and Organism B share more structural characteristics with one another than they do with Organism C.
Step-by-step explanation:
Despite all three organisms being chordates, thus animals that have spines and bone structure, further into the phylogenetic tree they have evolved much differently, with A and B being mammals, while C being a type of bird.
Organisms A and B will have much more things in common, especially when it comes to the basic bone structure, and certain traits that define them as mammals, even if we are talking about a whale and a bat. Organism C on the other hand, will have much different structural features, used for different things, or even for the same ones but developed in a different manner.