Context: As a Navy clinical psychologist assigned to a Marine operational unit , I was authorized to wear their uniform . The corporal rolled forward in his wheelchair and shook my hand firmly . " You have no idea how great it is to see that uniform , ma\'am , " he said with a grin .
Question: Why was the corporal seated ?
Option 0: Because he could n't be bothered to get up .
Option 1: Because he was in a position of authority .
Option 2: Because he had gotten there a while ago .
Option 3: Because he had lost the use of his legs .
Answer: 3