Which of the Following Statements Is True About Empedocles

Which of the following statements is true about Empedocles?

A) He simply assumed some very basic principles and attempted to deduce from these what he thought must be the true nature of being.
B) He thought that true reality is permanent and unchangeable, yet he also thought it absurd to dismiss the change one experiences as mere illusion.
C) He wished to call attention to what he thought was the essential feature of reality; namely, that it is ceaselessly changing.
D) He taught that each thing contains its opposite, just as, for example, people are simultaneously young and old and coming into and going out of existence.