Which of the following statements is/are true about quaternary activities?

The Quaternary Sector has replaced most of the primary and secondary employment as the basis for economic growth. Quaternary activities can not be outsourced. Personnel working in office buildings, elementary schools and university classrooms, hospitals and doctors offices, theatres, accounting and brokerage firms all belong to this category of services. All of the above

Personnel working in office buildings, elementary schools and university classrooms, hospitals and doctors offices, theatres, accounting and brokerage firms all belong to this category of services.

The Quaternary Sector along with the Tertiary Sector has replaced most of the primary and secondary employment as the basis for economic growth. Like some of the tertiary functions, quaternary activities can also be outsourced.