Final answer:
The multiples of 3 that represent the days the whale show will be presented are 3, 6, and 9.
Step-by-step explanation:
The multiples of 3 can be found by multiplying 3 by different whole numbers. In this case, we are looking for multiples that represent the days the whale show will be presented. Using the options provided, we can see that option A) 3, 6, 9 is the correct answer because these numbers are all multiples of 3. Option B) 5, 10, 15 are not multiples of 3. Option C) 2, 4, 6 are all even numbers but not multiples of 3. Option D) 8, 12, 16 are multiples of 4 but not multiples of 3.