Your answer would be D, or 36 outcomes.
To do this, multiply together the quantity of options each course has. The first course has 3 choices, the main has 4, and the dessert has 3.
Multiplying these: 3 * 4 * 3, would get the answer of 36 outcomes.
Explanation:
To see why this is done, just take 2 courses as an example. The first course has 3 different options, and then for each one of those options, there is a pairing with 4 different main course options. For example, there's salad + 4 choices, soup + 4 choices, and bread + 4 choices.
Therefore, you would end up multiplying 4 choices by 3 times (or the 3 choices of the first course) to get your answer. Applying this in this scenario, there are then 3 paths after the first two courses, so you would just multiply 3*4*3.
Hope this helped!