A number which can be expressed as where p and q are integers and q ≠ 0 is

Rational Numbers – A number which can be written in form of

where p and q are integers and q≠0.

is a rational number

where p and q are 5 and 8 respectively and q≠0.

⇒The numbers satisfies the above definition given in question.

(a)Incorrect because from the example is not a natural Number.

(b) Incorrect because from the example the example is not a whole number.

(C) Incorrect because the expression in the example is not an Integer.