Refer to the exhibit.

The HQ site uses area code 650. The BR1 site uses area code 408. The long distance national code for
PSTN dialing is 1. To make a long distance national call, an HQ or BR1 user dials access code 9,
followed by 1, and then the 10-digit number.
Both sites use MGCP gateways. AAR must use globalized call routing using a single route pattern.
Assume that all outgoing PSTN numbers are localized at the egress gateway as shown in the exhibit.
Which partition should be configured in the AAR CSS applied at the phones?

A.
PSTN partition

B.
LD partition

C.
The HQ AAR CSS must include a partition assigned to route pattern 91408XXXXXXX. The BR1 AAR
CSS must include a partition assigned to route pattern 91650XXXXXXX.

D.
AAR CSS must contain translation pattern 9.1[2-9]XX[2-9]XXXXXX for each site that must be
globalized. Otherwise the called numbers will not be localized at the egress gateway.