Answer:
correct answer is b) irrational number
Explanation:
Rational number:
Any number which can be expressed in the form of fraction of two integers a/b, denominator b should be non zero. Every integer is a rational number.
irrational number:
Any number which cannot be expressed in the form of fraction of two integers a/b is known as irrational number.
square roots of numbers which are not perfect squares are irrational numbers. Only the square roots of perfect square numbers are rational.