Based on the observations that Animal A and Animal C have very similar structures, and Animal B and Animal C also have very similar structures, while Animal A and Animal B have only somewhat similar structures, it makes sense to infer a relationship among the organisms. The most reasonable order of the fossils in the fossil record would generally place the most similar organisms closer together.
Since Animal A and C are very similar, and both have very similar structures with B, a likely scenario is that Animal C appeared most recently, followed by A, and then B. This helps to represent the relationships accurately.
Therefore, the best order from the given options is:
C, A, B
(Animal C appearing first, then A, and finally B).
However, if "C, A, B" is not one of the options, we can look at similar arrangements. The option A, C, B also makes logical sense since it indicates that A and C are more closely related than B.
Based on the relationships outlined, the final reasonable answer from your options is:
A, C, B.