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.
<span>The process in which hydrogen introduced to vegetable oil to make them saturated is known as Hydrogenation.</span>
<span>a. The model cell swells because it is in a hypotonic solution. The water enters the cell to move the glucose cells out into a solution to create equilibrium.</span>
Regulation of growth and forming of organs