Which of the following is NOT true of social media sites?

Which of the following is NOT true of social media sites?
 a. You need not be concerned with your professional image because employers do not typically scour these sites to find out more information about you. c. You can post your resume, samplesof your work, and recommendations from your peers or past employers.
 b. You can meet people who can give you career advice or put you in contact with people who are looking to hire someone with your credentials. d. You can continue to stay in contact with people, such as past professors or coworkers, who can play an important role in your job search.