Select the most appropriate meaning of the given Idiom:-

"To Keep’s one's nerves or To hold on to One's nerves    "

Being calm in difficult circumstances

The most appropriate meaning of the idiom "to keep one's nerves" or "to hold on to one's nerves" is being calm in difficult circumstances. The idiom comes from the literal meaning of nerves, which are the body's system for responding to stress. In the same way, when someone "keeps their nerves" or "holds on to their nerves," they are able to stay calm and in control in a difficult situation.

The other options are not as accurate. Being brave and fighting is not an idiom, and it does not mean to be calm in difficult circumstances. Not to talk unnecessarily is not an idiom either, and it does not mean to be calm in difficult circumstances. To be in a good health is not an idiom either, and it does not mean to be calm in difficult circumstances.