Question: Consider the diagram in  regarding a mountainous region. The diagram shows the average winter temperature (left-hand y-axis) at different altitudes (x-axis) and the abundance of three tree species (right-hand y-axis) at different altitudes (x-axis). Which species is/are found below an altitude of 500m? A) Species 1 only  B) Species 2 only  C) Species 3 only  D) Species 1 and 2 only. Please choose an answer from [A, B, C, D].
Answer: A