When filling out the matching section, do NOT type out the w…

When filling out the matching section, do NOT type out the whole answer. Put ONLY the letter of the answer down (with no periods or anything else) or it will mark the question wrong.     _ is the Greek Philosopher who said that one cannot step into the same river twice. _______ . A. Being B. Innate Knowledge C. Becoming D. Heraclitus E. Actuality F. Final G. Parmenides H. Socrates I.  Real J. Good