How is a call assigned to a call type in the PCCE system?

How is a call assigned to a call type in the PCCE system?
A . when the call terminates, and data is written to the Cisco TCD table
B. when the call is first post-routed from Cisco Unified Customer Voice Portal
C. when the call is routed to an agent
D. when a call-routing script hits the first Queue to Skill Group node

Answer: A