For your company, what would be a good solution for a WAN technology? A private WAN? Would a VPN be...

For your company, what would be a good solution for a WAN technology? A private WAN? Would a VPN be appropriate? Why? If you are not currently working in a company, consider a business enterprise that communicates worldwide with its trading partners, and exchanging information about orders with their manufacturing partners, and with their customers about shipments and payments. Assume that the company has annual revenues of $10M. It must exchange design drawings and specifications and have video conferencing capabilities with their suppliers and customers.