An architect must create a QoS solution for a customer to ensure that a 40 Mbps Internet connection is shared between four subnets based on these requirements: * Each subnet must receive no less than 10 Mbps of download bandwidth during peak traffic times. * A subnet can use up to 40 Mbps during nonpeak traffic times if the other subnets are idle. * Download traffic must never experience a delay. Which solution must the architect choose?