Final answer:
Impermanence is the concept that all things are temporary and constantly changing, which means the correct answer is B) Temporary.
Step-by-step explanation:
Impermanence refers to the concept that all things are temporary and subject to change. The philosophical doctrine that supports this idea is that nothing is permanent, everything is transient, and that change is the fundamental nature of existence. It is in contrast to the belief that there exists a permanent reality that remains static and unchanging, which is not supported by the concept of impermanence. The idea of impermanence suggests that all things are unstable and short term, which coincides with the temporary nature of all phenomena.