Which one of these statements describes why, from a design perspective, a managed VPN approach for enterprise teleworker

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Which one of these statements describes why, from a design perspective, a managed VPN approach for enterprise teleworkers is most effective?

A. A managed VPN solution uses a cost-effective, on-demand VPN tunnel back to the enterprise.
B. This solution supports all teleworkers who do not require voice or video.
C. This architecture provides centralized management where the enterprise can apply security policies and push configurations.
D. It provides complete flexibility for remote access through a wireless hotspot or a guest network at a hotel, in addition to a home office.