Definition of Yes/No Questions

Hi teachers,
The students have the drawing for each question.
Which definition would be the most appropriate? Is it 'd'?
a) We use these yes/no questions to confirm or refute the name of an object or an animal in singular and plural.
b) We use these yes/no questions to confirm or contradict the name of an object or an animal in singular and plural.
c) We use these yes/no questions to confirm or negate the name of an object or an animal in singular and plural.
d) We use these yes/no questions to confirm or deny the name of an object or an animal in singular and plural.

Is this a pen? Yes, it is.
Is this a book? No, it isn't. It is a pen.
Is this a cat? Yes, it is.
Is this a dog? No, it isn't. It is a cat.

Are they pens? Yes, they are.
Are they books? No, they aren't They are pens.
Are they cats? Yes, they are.
Are they dogs? No, they aren't They are cats.

Thanks in advance.