Final Answer:
The two consecutive whole numbers between which 90 falls are D. 9 and 10.
Step-by-step explanation:
The numbers provided in the options represent consecutive whole numbers, and our task is to determine which pair surrounds the given value, 90. To check if 90 falls between the numbers 9 and 10, let's assess the range. If we evaluate \(9 < 90 < 10\), it holds true. The inequality signifies that 90 is greater than 9 and less than 10, confirming that D. 9 and 10 is the correct answer.
Now, to further elaborate, consider the fact that consecutive whole numbers differ by 1. In this case, the difference between 10 and 9 is indeed 1. If we subtract 9 from 10 (\(10 - 9 = 1\)), we obtain the difference between consecutive numbers. Therefore, the pair of numbers that encompasses 90 is indeed 9 and 10.
In summary, the choice D. 9 and 10 is the correct answer because the inequality \(9 < 90 < 10\) is satisfied, indicating that 90 falls between the consecutive whole numbers 9 and 10. The difference of 1 between these numbers further supports the correctness of this choice.