Arnold is narrowing the focus of his memoir. He makes the following note:
Me, my dogs Daisy and Seamus--check with my Dad, can't remember if he was there--we encountered huge bear in the woods--matted shaggy brown fur, claws, yellow teeth
Between B or C, would have to choose B. since when is not specified and where as well. Who is kind of but not really thus the answer choice B. what is correct