Which of the following is not part of a phospholipid

Option B, Concept

Explanation:

Any general idea about anything is termed as concept. Concept depicts an abstract idea about any process, notion, observation, individual or beliefs that originates in the mind or speech or thoughts of any individual. Some believe that concepts are the building blocks of though and they play an essential role in cognitive way of thinking and processing information.

These concepts may or may not require basis for existence.

Hence, option B is correct.

A CONCEPT is the general idea of objects, events, animals, or people based on common features, traits, or characteristics.