Which of the following shows the memory address of the first element in an array?

In C++, you can use the address-of operator (&) to get the memory address of the first element in an array. Here's how you can do it:

1. Declare and initialize an array. For example, int arr[] = {10, 20, 30, 40, 50};
2. Use the address-of operator to get the memory address of the first element. For example, &arr[0];

So, &arr[0] will give you the memory address of the first element in the array.

In C++, you can get the memory address of the first element in an array by using the address-of operator (&). Here's how you can do it:

1. Declare and initialize your array. For example, you might have an array of integers like this:

int myArray[] = {10, 20, 30, 40, 50};

2. Use the address-of operator (&) to get the memory address of the first element in the array. You can do this by referencing the index of the first element, which is always 0 in C++. Here's how you can do it:

int* p = &myArray[0];

In this line of code, p is a pointer that now contains the memory address of the first element in myArray.

3. If you want to print this memory address, you can use the cout statement:

cout << "The memory address of the first element is: " << p << endl;

This will print the memory address of the first element in myArray.

Remember that memory addresses can vary each time you run your program, as the operating system can choose to store your array in different locations in memory.