Which translations are captured if you ADD EXTRACT BEGIN now 1:00 p.m., but START EXTRACT at 2:00 p.m.?

Which translations are captured if you ADD EXTRACT BEGIN now 1:00 p.m., but START
EXTRACT at 2:00 p.m.?

A.
Transactions started on or after 1:00 p.m.

B.
Transactions started on or after 2:00 p.m.

C.
Transactions started before 1:00 p.m and committed after 1:00 p.m.

D.
Transactions started before 1:00 p.m and committed after 2:00 p.m.

Explanation:
The START EXTRACT starts the Extract and Data Pump processes.
Reference:
http://www.pythian.com/news/7959/oracle-goldengate-installation-part-1/