Which two of these are characteristics of using Standard Local Route Groups? (Choose two.)

A.
reduces call-routing time

B.
decouples the selection of a PSTN gateway from a route pattern

C.
can be added more than once to a route pattern

D.
allows for the dynamic selection of egress gateways based on the device originating the ca

E.
places more call-routing intelligence at the gateway

Explanation:
Explanation : route group can be added to route list not route pattern.
Link : http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/8_5_1/ccmfeat/fslrg.html
Cisco Unified Communications Manager Features and Services Guide for Cisco
Unified Communications Manager Release 8.5(1) , page-791