Which two frames can be configured on an Ethernet flow point? (Choose two.)

Which two frames can be configured on an Ethernet flow point? (Choose two.)
A . of a specific VLAN
B . with different type of service values
C . with identical type of service value
D . with different class of service values
E . with no tags

Answer: A,E

Explanation:

Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/cether/configuration/xe-3s/asr903/16-5-1/b-ce-xe-16-5-asr900/trunk-efp-support.html