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.
Conflict management helps create a strong between the workforce which not just creates a healthy environment to work in but makes half the problems at work go away automatically too.
It also keeps the employees motivated as the little issues that occur with the employees are addressed and solved efficiently and makes them feel valued.
<span>Lastly, it keeps issues from turning into crisis and resulting in negative consequences that could have easily been prevented through conflict management being observed at the most basic level.</span>