The QoS implementation for WLANs differs from QoS implementations on other Cisco devices. Which two actions do QoS enabl

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The QoS implementation for WLANs differs from QoS implementations on other Cisco devices. Which two actions do QoS enabled autonomous bridges perform?
(Choose two)

A. They do not classify packets; they prioritize packets based on DSCP value, client type (such as a wireless phone), or the priority value in the 802.1q or 802.1p tag.
B. They construct internal DSCP values and support mapping by assigning IP Differentiated Services Code Point (DSCP), Precedence, or Protocol values to Layer 2 COS values.
C. They do not match packets using ACL; they use only modular quality of service (MQC) class-map for matching clauses.
D. They do not construct internal DSCP values; they only support mapping by assigning IP Differentiated Services Code Point (DSCP), Precedence, or Protocol