When using the Cisco IOS XR route policy language to define a logical if-then-else condition,
which logical operator has the highest precedence?

A.
AND

B.
OR

C.
NOT

D.
IS

E.
IN

Explanation:

http://www.cisco.com/en/US/docs/ios_xr_sw/iosxr_r3.0/routing/configuration/guide/rc3rpl.html