Select the most appropriate meaning of the given idiom.

Keep body and soul together

Stay alive during hard times

The most appropriate meaning of the idiom "keep body and soul together" is stay alive during hard times.

This idiom is used to describe the act of surviving or managing to live in difficult or challenging circumstances. It is often used to describe people who are struggling financially or who are facing other hardships.

The other options for the meaning of the idiom are not as accurate.

• Live happily does not typically describe a situation where someone is struggling to survive.
• Live as long as possible does not specifically refer to staying alive during hard times.
• Be mentally and physically fit does not typically describe someone who is struggling to survive.