Which of the following would be considered an unethical behavior in a business environment?
A - A manager embezzles 25% of the company's profits by falsifying tax documents.
B - A manager does not listen to his team of employees because he knows that their idea will not work.
C - A manager adds the skills he has learned in his present job to his resume.
D - A manager uses his professional contacts to network outside of work to look for a new job.