While Hiking in a Forest,you Notice an Unusual Plant Growing

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 xylem,and the roots of an epithetic plant will not.
D) The epithetic plant will have leaves forming tanks collecting water,and the parasitic plant will not.
E) All of the above apply.