Select the most appropriate meaning of the given Idiom:-

To Stick to one’s guns 

Remain faithful to the cause

The most appropriate meaning of the idiom "to stick to one's guns" is remain faithful to the cause. The idiom comes from the idea of a soldier who remains faithful to his or her guns, even in the face of danger. In a figurative sense, to stick to one's guns means to remain faithful to your beliefs or principles, even when others are trying to change your mind.

The other options are not as accurate descriptions of the meaning of the idiom. Very nervous is not typically associated with the idiom "stick to one's guns." Take revenge is not the same as sticking to one's guns, as it does not necessarily involve remaining faithful to your beliefs or principles. Confess – especially when a person has done a wrong thing is not the same as sticking to one's guns, as it does not necessarily involve remaining faithful to your beliefs or principles.