Final answer:
The C++ code displays the fourth element of the array 'numbers', which is 55, because arrays in C++ are zero-indexed.
Step-by-step explanation:
The code snippet provided is written in C++ and is accessing an element of an array. The array numbers is defined with the following elements: {99, 87, 66, 55, 101}. When the cout statement is executed, it will print the element at index 3 of the array. In C++, array indexing starts at 0, so index 3 corresponds to the fourth element of the array, which in this case is 55. Therefore, the correct answer is A) 55.