Answer:
D.

Explanation:
We have been given some numbers. We are asked to choose the irrational number from our given choices.
We know that a number is rational number, which can be written as a fraction. A number is irrational when it has non-terminating non-repeating decimal.
A.

Since given number is fraction, so it is rational.
B.


Since we can write 2 as a fraction
, so it is rational.
C.


Since we can write 5 as a fraction
, so it is rational.
D.


Since the given number has non-terminating non-repeating decimal, so it is irrational.
E.

Since given number is fraction, so it is rational.