The positive connotation for noisy it think would be "participative".
The definition, according to Merriam-Webster is as follows:
Definition of participative<span>. : relating to or involving participation; especially : of, relating to, or being a style of management in which subordinates participate in decision making.</span>
In the story a Knight's Tale by Geoffrey Chaucer Arcite is a Knight who imprisoned and falls in love with a beautiful woman named Emily. After being banished and never being able to see Emily again Arcite disguises himself as one of her servants and quickly becomes a part of Emily's household so he can be close to her once again. This is how Arcite was resourceful.
The correct answer is B, a social class. 'Interest groups' have the same interest that influences them. "A political party' is about politics. And D isn't correct as this is not a culture, it is merely a class.
Thinking about Grendel, I think 'A' is most likely.