That part of the message we can still recall after short-term and long-term memory loss is

That part of the message we can still recall after short-term and long-term memory loss is called residual message.

A residual message usually has a huge impact to listeners as this message tends to be remembered by people who listen to long speeches. It usually also contains the key idea of a long message.

i do believe that the correct answer is   (technical reasoning); luck

explanation:

where are the choices