Select the most appropriate meaning of the given idiom.

Bend over backwards

To exert a lot of effort towards some end

The most appropriate meaning of the idiom "bend over backwards" is (☀) To exert a lot of effort towards some end.

The idiom "bend over backwards" means to go to great lengths to do something, especially to please someone. It is thought to come from the image of someone bending over backwards to reach something that is out of their reach.

The other options are incorrect.

• "To express sudden shock" is the idiom "to be taken aback".
• "To end all activities" is the idiom "to call it a day".
• "To confess to a crime" is the idiom "to come clean".