Which function is used to created dynamic 2D arraysGroup of answer choicesalloc2Dmallocmmalloc2Dmalloc PreviousNext

The function used to create dynamic 2D arrays in C is malloc. Here is a step by step guide on how to do it:

1. Declare a pointer to a pointer variable: This will be used to point to the first element of the 2D array. For example, int **array;

2. Allocate memory for the rows: Use the malloc function to allocate memory for the rows. For example, if you want to create a 2D array with 5 rows, you would do: array = (int **)malloc(5 * sizeof(int *));

3. Allocate memory for the columns: Use a loop to allocate memory for each row. For example, if each row has 3 columns, you would do:

for(int i = 0; i < 5; i++) {
    array[i] = (int *)malloc(3 * sizeof(int));
}

4. Now you can use the array as a normal 2D array. For example, you can assign a value to an element of the array like this: array[1][2] = 5;

5. Don't forget to free the memory when you're done with the array:

for(int i = 0; i < 5; i++) {
    free(array[i]);
}
free(array);

This is how you can create a dynamic 2D array in C using the malloc function.