While Hiking in a Forest, You Notice an Unusual Plant

While hiking in a forest, you notice an unusual plant growing on the branches of a tree. What will help you to determine if this plant is epiphytic or parasitic?

A) If the plant is green, it is epiphytic; if not, then it is parasitic.
B) The root of an epiphytic plant will be in the soil, but a parasitic plant will grow from the trunk of a tree.
C) The roots of a parasitic plant will penetrate under the bark into the tree tissues, and the roots of an epiphytic plant will not.
D) The epiphytic plant will have large water-collecting leaves, and the parasitic plant will not.