Final answer:
There are 120 apartment options available.
Step-by-step explanation:
To determine the number of apartment options available, we need to consider the number of choices for each option. We have 4 choices for the number of bedrooms (A), 3 choices for the number of bathrooms (B), 5 choices for the floor (C), and 2 choices for outdoor additions (D). To find the total number of options, we multiply these choices together: 4 * 3 * 5 * 2 = 120. Therefore, there are 120 apartment options available.