Answer:
I know I am a little late but I think it is
B. It shows that he is familiar and ordinary
Step-by-step explanation:
In the text it says:
“Now, you dear good old Ratty,” said Toad, imploringly, “don't begin talking in that stiff and sniffy sort of way, because you know you've GOT to come. I can't possibly manage without you, so please consider it settled, and don't argue—it's the one thing I can't stand. You surely don't mean to stick to your dull fusty old river all your life, and just live in a hole in a bank, and BOAT? I want to show you the world! I'm going to make an ANIMAL of you, my boy!”
“I don't care,” said the Rat, doggedly. “I'm not coming, and that's flat. And I AM going to stick to my old river, AND live in a hole, AND boat, as I've always done. And what's more, Mole's going to stick to me and do as I do, aren't you, Mole?”
In the text, he's saying he wants to stay with his ordinary life and not to go where the others are going.