You're developing a function that modifies an array of integers. To ensure that the original array is not altered, how should the array be passed to the function?

To ensure that the original array is not altered, you should pass a pointer to the array to the function. This way, the function can work with the original data without making a copy of the array. Pass by reference typically involves languages like C++ and is not a direct concept in C. Pass by value would create a copy of the array, which is not the desired behavior. Passing a copy of the array would have the same effect as passing by value.