A) Certain principles, like loyalty and truthfulness, were to emphasized at this company. (no change)
B) In order to be successful in the business world, it is important to develop relationships with people you can help, in addition to people who can help you. (comma added before “in addition”)
C) While an impressive resume will it you the interview, it is not sufficient enough to get you the job. (no change)
D) If you are nervous a =bout an upcoming interview, practicing your answers to common interview questions can be a good way to calm your nerves. (no change)
your answer will be B. this answer choice needs and additional comma after the word “help” to make it grammatically correct. if you need any more help let me know! :)