what happens to incoming calls to a Cisco Unified Communications Manager native call queue when no hunt members are logged in or registered is true?

Which statement about what happens to incoming calls to a Cisco Unified Communications Manager
native call queue when no hunt members are logged in or registered is true?

A.
Calls are handled according to the Forward Hunt No Answer settings on the Hunt Pilot
configuration page.

B.
Calls are handled according to the Not Available Hunt Option settings on the Line Group
Configuration page.

C.
Calls are handled according to the Forward Hunt Busy settings on the Hunt Pilot configuration
page.

D.
Calls are forward to the Forward Busy Calls To destination if configured; otherwise the calls are
disconnected.

E.
Calls are handled according to the correspondent parameters under the Queuing section on the
Hunt Pilot Configuration page.

Explanation:
There are three main scenarios where alternate numbers are used:
When queue is full
When maximum wait time is met
When no hunt members are logged in or registered
When queue is full
Call Queuing allows up to 100 callers to be queued per hunt pilot (the maximum number of callers
allowed in queue on a hunt pilot page). Once this limit for new callers been reached on a particular
hunt pilot, subsequent calls can be routed to an alternate number. This alternate number can be
configured through the Hunt Pilot configuration page (through the “Destination When Queue is Full”
settings).
When maximum wait time is met

Each caller can be queued for up to 3600 seconds per hunt pilot (the maximum wait time in queue).
Once this limit is reached, that caller is routed to an alternate number. This alternate number can be
configured through the Hunt Pilot configuration page (through the “Maximum wait time in queue”
settings).
When no hunt members are logged in or registered
In a scenario where none of the members of the hunt pilot are available or registered at the time of
the call, hunt pilot configuration provides an alternate number field (through the “When no hunt
members are logged in or registered” settings) where calls can be routed. For Call Queuing, a hunt
pilot member is considered available if that member has both deactivated do not disturb (DND) and
logged into the hunt group. In all other cases, the line member is considered unavailable or logged
off.

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/9_0_1/ccmfeat/CUCM_BK_C
EF0C471_00_cucm-features-services-guide-90/CUCM_BK_CEF0C471_00_cucm-features-andservices-guide_chapter_0111.html