Let’s go with A ..that must be the answer
Answer: a medicinal preparation for inhaling.
serving for inhalation
Explanation:
Probably spreading depends on the context you probably should add
The answer would be Humanistic Psychology.
The achievement of self-actualization was first discussed by Abraham Maslow as part of his hierarchy of needs, and it represents the completition of the highest level of the hierarchy and the emergence of the "fully functional person". Self-actualization is basically the achievement of meaning in one's own life.