Question : The decimal expansion of π is :

1. terminating
2. non-terminating and non-recurring
3. non-terminating and recurring
4. doesn't exist

Solution :
The correct option is 2. non-terminating and non-recurring
We know that $\pi$ is an irrational number and Irrational numbers have decimal
expansions that neither terminate nor become periodic.
So, correct answer is option 2.