Final answer:
The individual is categorizing existence into 'eternal existence' and 'temporary existence,' which are philosophical concepts related to metaphysics, exploring the nature of reality, consciousness, and the possibility of an eternal entity. Option B is correct.
Step-by-step explanation:
The two categories the individual wishes to describe concerning existence are eternal existence and temporary existence. These concepts delve into the realms of metaphysics, exploring whether aspects of reality are unchanging and perpetual or dynamic and transient.
In the context of metaphysics, and referencing existentialist philosophy, notably that of Jean-Paul Sartre, there is a distinction between 'Being-for-itself' which is conscious and free, and 'Being-in-itself' which is non-conscious. This philosophical inquiry aligns with considerations of space and time, time and eternity, and causation, and touches on deep metaphysical questions such as the existence of a deity or the nature of energy and the universe.
The idea of an eternal entity, be it in the form of a deity (creator of the universe) or as energy (which exists in various forms and undergoes continual change), brings into focus discussions on God's being, eternal nature, and the existence of evil. These debates often involve considerations of dualism versus monism-materialism, suggesting varied perspectives on the composition of reality, whether there are distinct substances like physical and spiritual, or just one dynamic, ever-changing reality.