Answer:
A) Irrational
Explanation:
The square root of 27 is an irrational number since it's not a rational number. We identify rational numbers because they can be expressed as fractions
If we take the value of
we get
5.1961524227066318805823390245176...
There is no way to transform that number into a fraction because
* It has no decimal limit
* It has no decimal pattern (or period)
Examples of rationals are
5.44444...

2.375
The last one has limited decimals, the first two have repetitive patterns or a period.