Answer: Third Option is correct.
Step-by-step explanation:
Since we have given that
1) 1.5- it is a rational number as it can be written in \(\frac{p}{q}\) form.
i.e. \(1.5=\frac{15}{10}=\frac{3}{2}\)
2) \(\frac{8}{9}\)- It is a rational number as it is written in \(\frac{p}{q}\) form.
3) 2.3 - It is a rational number as it can be written in \(\frac{p}{q}\) form.
i.e. \(2.3=\frac{23}{10}\)
4) pi - It is irrational number as it can't be written in \(\frac{p}{q}\) form.
Hence, Third Option is correct.
