Correct Answer: To maintain one’s position

Solution : The correct choice is the first option.

The idiom to stand one's ground is a figurative expression that means to maintain one's position, especially in the face of opposition, pressure, or difficulty. It does not necessarily imply physical fighting but rather the determination to hold firm to one's beliefs, opinions, or stance.

Therefore, the correct meaning of the given idiomatic expression is to maintain one's position.