Select the appropriate meaning of the given idiom.

To flog a dead horse

To waste the efforts

The most appropriate meaning of the idiom "to flog a dead horse" is >To waste the efforts.<

This idiom is used to describe a situation where someone is continuing to try to do something that is impossible or pointless. The image of flogging a dead horse is a metaphor for doing something that is futile and a waste of time.

For example, you might say that someone is flogging a dead horse if they are trying to convince someone who is not interested in something.

The other options are not correct.

• To accept the challenge does not mean flog a dead horse.
• To complete the work does not mean flog a dead horse.
• To make the best use of resources does not mean flog a dead horse.