When is the "Year-end P/L Account" (specified at the Bank level) used?

When is the “Year-end P/L Account” (specified at the Bank level) used?

A.
when a particular GL is closed

B.
when the GL to which year-end balances should be posted is not specified in Accounts

C.
when all year-end transactions pertaining to Memo GL are to be posted

D.
when previous year adjustment entries are to be posted

Explanation:
Explanation/Reference:
All P&L accounts should have the year-end GL specified when they are setup at Chart of account.
If it is not specified, at EOY when zeroing P&L system applies the year-end GL specified at branch
parameters.