Your company， Contoso， Ltd ， has offices in North America and Europe. Contoso has an Active Directory forest that has three domains. You need to reduce the time required to authenticate users from the labs.eu. contoso.com domain when they access resources in the eng.na.contoso.com domain. What should you do（）

A. Decrease the replication interval for all Connection objects.
B. Decrease the replication interval for the DEFAULTIPSITELINK site link.
C. Set up a one-way shortcut trust from eng.na.contoso.com to labs.eu.contoso.com.
D. Set up a one-way shortcut trust from labs.eu.contoso.com to eng.na.contoso.com.