An IS auditor found that a company executive is encouraging employee use of social networking sites for business purposes. Which of the following recommendations would BEST help to reduce the risk of data leakage? 

Answer options:

A. Requiring policy acknowledgment and nondisclosure agreements signed by employees
B. Providing education and guidelines to employees on use of social networking sites
C. Establishing strong access controls on confidential data
D. Monitoring employees` social networking usage

B