A、The ability to use the knowledge. B、The diploma. C、School grades. D、Interpersonal relationships. A

There is a common opinion that if you study hard and graduate with an "A diploma," it will guarantee you will find a great job that pays well. Unfortunately, the reality is different. (16) Although, most positions require you to have a diploma, no one will look through your grades. When you graduate, the only thing that matters is your knowledge and the ability to operate within the system.
   So why is it that students that you could barely get their "C" at the end of a semester manage to become super successful? Let’s look through some reasons why "C" students will be the most successful people in the world.
   "C" students don’t spend much time on the unnecessary classes we all have to do.
   If you are trying to become a technician, you obviously don’t need to write hundreds of annoying essays about culture and your summer experience.
   They stop taking the required classes and focus on vocation-related subjects that can help them during their work. (17) World famous innovator and entrepreneur Steve Jobs never finished college and made it to the top of IT industry only because he was focused on doing what he liked. During his famous speech to Stanford graduates he emphasized that "The only way to succeed, is to love what you do. Keep looking: don’t settle."
   (18)Most "C" students start working earlier than their peers, which lowers their marks as they have to skip classes to make a living. At the same time, they get priceless experience every "A + " graduate is missing. And we all know that you are less likely to be hired without actual experience.
   While "A" students are stuck learning unnecessary subjects, "C" students read tons of useful literature and communicate with dozens people every day. In real life, knowing powerful people as well as the ability to communicate can make a difference in your career.
   When in college, they visit parties and come to the lessons a little bit hangover, nevertheless, they enjoy their life. Same happens when they start working. Plain and simple: Happy people are more successful than those who are not. (19) It happens because they are fun to be around, and they are proactive team players who will cheer up the entire team, which is one of the best skills your boss can look for. Stressful, negative people, no matter how intelligent they are, won’t be in the top list of candidates.
   Questions 16 to 19 are based on the recording you have just heard.
   16. What really matters to us at a workplace?
   17. What do we learn from Steve Jobs’ example?
   18. What can we learn about "C" students?
   19. What is one of the best skills employers emphasize?