In order to construct a good definition by genus and difference what must be avoided?

A. It should state the conventional intension of the term being defined

B. It must state the essential attributes of the term being defined

C. The definiendum itself must appear in the definiens

D. The definiens must denote more things than are denoted by the definiendum

E. A definition should not be negative when it can be affirmative

Choose the correct answer from the options given below: