Final answer:
According to Parmenides, the Entity is both immortal and indivisible,(option c) which means option c is the correct choice. He considered all reality to be changeless, unified, and complete, in contrast to Heraclitus, who saw change as central to existence.
Step-by-step explanation:
According to Parmenides, the Entity is both immortal and indivisible, making option c the correct answer. Parmenides, a Presocratic philosopher, argued that reality, or the Entity, is a singular, unified, and unchanging existence. He proposed that because change suggests a transition from 'what is' to 'what is not', and since 'what is not' cannot exist, change is impossible. Any perception of change is merely an illusion created by our senses, which are deceptive. In his metaphysics, Parmenides emphasized that reality is eternal, ungenerable, imperishable, and unchanging, which supports both attributes of the Entity being immortal and indivisible. Contrastingly, Parmenides's student, Heraclitus, believed in perpetual flux and change, offering an opposing view where becoming and change are central to reality. Parmenides's emphasis on reason over sensory experience laid the foundational work for subsequent philosophical thought.