which mode should you power down if you want to conserve the most battery power while making allowance for the retrieval of the computing session at a later time?

In which mode should you power down if you want to conserve the most battery power while
making allowance for the retrieval of the computing session at a later time?

A.
Shutdown mode.

B.
Hibernate mode.

C.
Switch User mode.

D.
Standby mode.