which is the recommended practice to check for agent availability in the routing script with a route-select node to minimize IP IVR port usage?

In a Cisco Unified Contact Center Enterprise using Unified IP IVR, which is the recommended
practice to check for agent availability in the routing script with a route-select node to minimize IP
IVR port usage?

A.
after the script executes a translation route to VRU node

B.
at the end of the script

C.
prior to executing a translation route to VRU node

D.
A route-select node should not be used in an IP IVR script.