In the following question, select the related word from the given alternatives.
Ontology : Being :: Aesthetics : ?

The correct answer is Beauty.

Step-by-step Explanation:

1. Analyze the first pair (Ontology : Being):
Ontology is the branch of philosophy that deals with the study of the nature of being, existence, or reality.

2. Establish the relationship:
The relationship here is between a field of study or philosophical branch and its primary subject matter.

3. Apply the same logic to the second pair (Aesthetics : ?):
Aesthetics is the branch of philosophy concerned with the nature and appreciation of art, taste, and beauty.

Therefore, just as Ontology is the study of Being, Aesthetics is the study of Beauty.