Which of the Following Statements Best Explains the Existence of Evolutionary

Multiple Choice

Which of the following statements best explains the existence of evolutionary trends, such as increasing body sizes among horse species?

A) A larger volume-to-surface area ratio is adaptive in many mammals.
B) Evolution generally progresses toward some goal.
C) Evolution tends toward increased complexity or increased size.
D) In particular environments, similar adaptations can be beneficial to more than one species.