Answer:
( D ). Counterexample
Step-by-step explanation:
Converse : It is defined as switching the hypothesis and conclusion of a conditional statement
Conditional : it consists of a hypothesis and a conclusion, and for conclusion to be true the hypothesis also must be true
Biconditional : It is a type of statement in which both the converse and conditional statements have true value
Counterexample : It is a special type of example which disproves a statement or a definition. So, a counterexample can be used in order to show a statement is not a good definition
So, ( D ) is the correct answer.
