## Answer :

**Explanation:**

__To determine the maximum number of colors that the image can use, we need to consider the number of bits used per pixel. In this case, the image uses 24 bits per pixel.__

__Each bit can have two possible values: 0 or 1. With 24 bits, we can have 2^24 combinations of these values. Therefore, the maximum number of colors that the image can use is 2^24.__

__So, the correct answer is (3) 2^24.__

__Let me know if there's anything else I can help you with!__