It Seems Unlikely That Our Conceptual Knowledge Is Represented by Mental

Multiple Choice

It seems unlikely that our conceptual knowledge is represented by mental definitions because

A) each person has his or her own idea about how concepts should be defined.
B) many of our abstract concepts (e.g., justice, love, God) are difficult to define.
C) it is easy to find exceptions to any proposed definition.
D) most of our concepts are difficult to express in words.