question: What is the purpose of the UE Identity Service specified in GS (Group Specifications) MEC (Multi-access Edge Computing) 014? option 1: To provide actual RAN information relating to the User Equipments (UEs) in the network option 2: To estimate the location of vehicles and pedestrians option 3: To trigger user-specific traffic rules on the MEC platform option 4: To reserve networking resources at the host option 5: To enable applications to discover the services they wish to consume or to offer 