The statement that is true about Gryphon and Mock Turtle is Both are rude and self-involved.
Explanation:
In the story of "Alice in Wonderland" the character of the Mock Turtle tells Alice about his school years while they're accompanied by the Gryphon, they only know to talk about their past year at school and to sorrow about them and the mock turtle gets angry very easily when people do not respect the story.
While many might say the fridge needs to be opened first to prepare breakfast, note that it does not say that the parents are in the house, and therefore they would need to be let in. Hence the answer of what to open first would be "the door".