Which of the Following Inferences Can Best Be Made from the Fact

Which of the following inferences can best be made from the fact that arthropods colonized land about 100 million years before vertebrates?

A) arthropods evolved after vertebrates did
B) extant terrestrial arthropods are better adapted to terrestrial life than are extant terrestrial vertebrates
C) vertebrates evolved from arthropods
D) arthropods have had more time to coevolve with land plants than have vertebrates