You manage two on-premises networks, each located in a separate branch office. You must connect both networks to Azure while controlling costs.
Which type of connection should you choose?
You should choose a multi-site VPN. This accomplishes the goal of connecting the branch offices to Azure while controlling costs.
You should not choose an ExpressRoute connection. ExpressRoute connects an on-premises network to a virtual network via wide area network (WAN). Although this solution provides a fast, secure connection, it is not a low-cost option.
You should not choose an MPLS network. This is also not a low-cost option.
You should not choose a point-to-site connection. This option connects one or more machines and a site via the Internet and is not an appropriate solution for connecting branch offices.