Which two calling search space configuration options are significant in routing the second stage call after the user is authenticated and dialed digits are collected?

In the Cisco Unified Mobile Voice Access feature on Cisco Unified Communications Manager, which two calling search space configuration options are significant in routing the second stage call after the user is authenticated and dialed digits are collected? (choose two)
A. Concatenation of a remote destination profile CSS and line CSS
B. calling number transformation CSS of the remote destination
C. remote destination profile rerouting CSS
D. phone line level CSS of the mobility user
E. trunk or gateway inbound CSS
F. mobility user’s phone device level CSS