Sentence B is the correct one. It is the only sentence using content to refer to satisfaction rather than objects or substances.
Lay out a plan for how your going to study, have your notes organized, and take your time going over them. I would look more into everything you study so you have a deeper understanding for each topic.
Name is a form of identifier of a person and it's easier for our brains to remember "This was John" than "This was that tall guy with dark hair and blue eyes". The other reason is that it's usually kind to exchange names when one has a chat with someone else.
