Final answer:
The rational number that is between sqrt(10) and sqrt(11) is 16/5.
Step-by-step explanation:
The square root of 10 is approximately 3.16, while the square root of 11 is approximately 3.32. A rational number is a number that can be expressed as a ratio of two integers. To find a rational number between these two square roots, we can find a fraction that is between 3.16 and 3.32. The fraction 16/5 (which is equal to 3.2) is between these two values, so the correct answer is (a) 16/5.