What is the most efficient way to add an additional 10 new entries to an existing list?

A.
Use a workflow to add the new list values.

B.
Use Data Integrator to import a new list with the new values.

C.
Select the list, enter all the values, and then save the entries.

D.
In the form that lists the values, enter each value as it is needed for that particular record.

Explanation: