Which of the following is correct regarding an object$-$oriented database?

Question $7$ options:

a$)$

A "bedroom" object should inherit from a "house" object.

b$)$

A "dwelling" object must have no methods.

c$)$

A "car" object must have a "gas pedal" object so that it can perform the method "accelerate."

d$)$

None of the above.