Wow thanks for posting this hopefully people see this and get help:)
It is D, sharing appreciation for what is being said. Both A and B aren't crucial to being a good listener, in fact in practice they effectively draw attention to yourself, which would be fine if the question was regarding being a good conversationalist. Additionally, C is just completely irrelevant, that wouldn't even be a good conversation practice, let alone a trait important to listening.
Roast them. bake them on 350 with some olive oil and seasonings and then put them on broil for about 5 min
