Plants in "Mediterranean" ecosystems have similar adaptations for surviving hot dry summers and fire. Given that these ecosystems are presently found in southern Europe, California, Chile, South Africa, and southern Australia, which of the following best explains the origin of these adaptations?

(A) These adaptations likely arose in a common ancestor on Pangea, and continental drift later moved these drought- and fire-adapted plants to their present locations.

(B) These plants likely share a recent common ancestor and have been subjected to the same selective pressures.

(C) Although these plants likely do not share a recent common ancestor, they have been subjected to the same selective pressures.