Select the most appropriate meaning of the given idiom.

Leave no stone unturned

Make all possible efforts

The most appropriate meaning of the idiom "leave no stone unturned" is make all possible efforts.

The other options are incorrect.

• To act in a strange manner does not mean make all possible efforts. Acting in a strange manner means to behave in a way that is unusual or unexpected.
• To get fired from the job does not mean make all possible efforts. Getting fired from the job means to be dismissed from employment.
• Not willing to accept the ideas of others does not mean make all possible efforts. Not being willing to accept the ideas of others means to be close-minded or inflexible.

The idiom "leave no stone unturned" comes from the idea of searching everywhere, even under rocks, to find something. In the same way, to leave no stone unturned means to make every effort possible to achieve something. For example, you might say that a detective left no stone unturned in his search for the murderer.