Materialists believe that we are only physical beings subject to laws of causation and without freedom of choice. Which of the following propositions is not consistent with that premise?a. When we die, we perish entirely since there is no part of us that could survive. b. Love, truth, goodness and beauty are ideal realities that, unlike matter which simply is, express value, stipulating what ought to be. Such ideas are not possible in a purely material universe. c. All processes are physical ones, hence thought itself is the physical process of nerve synapse firings. d. In physical beings the only reality is change, hence, we came about by a lengthy process of evolution.