The Chief Executive Officer (CEO) of an Organization Would Like

The Chief Executive Officer (CEO) of an organization would like staff members to have the flexibility to work from home anytime during business hours, including during a pandemic or crisis. However, the CEO is concerned that some staff members may take advantage of the flexibility and work from high-risk countries while on holiday or outsource work to a third-party organization in another country. The Chief Information Officer (CIO) believes the company can implement some basic controls to mitigate the majority of the risk. Which of the following would be BEST to mitigate the CEO's concerns? (Choose two.)

A) Geolocation
B) Time-of-day restrictions
C) Certificates
D) Tokens
E) Geotagging
F) Role-based access controls