Correct option is A
Concept used:
Irrational number - An irrational number is a type of real number which cannot be represented as a simple fraction.
Solution:
According to the given option:
√17: The square root of 17 is approximately 4.123, which lies between 3 and 5
We clearly see that √17 comes between 3 and 5
∴ The required number is √17.