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Which assigns the array's last element with 99?

```cpp
int myArray[15];
```

A. `myArray[0] = 99;`

B. `myArray[14] = 99;`

C. `myArray[15] = 99;`

D. `myArray[16] = 99;`

Answer :

The correct option to assign the array's last element with 99 is b. myArray[14] = 99;

In C++, array indices start from 0. The given array declaration "int myArray[15];" creates an array with a size of 15 elements. Since the array's size is 15, the valid indices range from 0 to 14.

To access and assign a value to the last element of the array, we use the index 14. This is because we subtract 1 from the size of the array (15 - 1 = 14) to get the index of the last element. Therefore, by using the assignment statement "myArray[14] = 99;", we assign the value 99 to the last element of the array.

It's important to note that options c. myArray[15] = 99; and d. myArray[16] = 99; are invalid. These options attempt to access elements beyond the valid range of the array, resulting in undefined behavior or potential memory access errors. To ensure correct and safe array manipulation, it's crucial to stay within the bounds of the array's valid indices.

Learn more about indices here:

https://brainly.com/question/24146036

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