Which of the following describes something that is "esoteric"?

The term "esoteric" refers to knowledge or information that is intended for or likely to be understood by only a small number of people with a specialized interest or background. It indicates exclusivity and a level of complexity that makes the subject matter obscure or not accessible to the general public. For example, certain philosophical concepts, advanced scientific theories, or niche hobbies may be considered esoteric because they are typically grasped only by those deeply involved or knowledgeable in those particular fields. This aligns perfectly with the idea that something esoteric is known only by a few, making it the correct answer. In contrast, the other choices describe ideas or concepts that are broadly shared or widely accepted, which directly contrasts with the inherent exclusivity of something characterized as esoteric.