Question

A={ X I X is a whole number but not a natural number}
Empty set
Finite set
Infinite set
Singleton set

Answer 1

A= {0}

Hence, it is Singleton set or Finite Set

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Additional information:

Types of sets:

•Empty set- If there is not single element in the set which satisfies the given condition is called Empty set

•Finite set- If a set is a null set or number of element are limited or countable, then it is called an Finite set

•Infinite set- If number of elements in a set is unlimited , uncountable, then the set is called as Infinite set

•Singleton set- A set consisting of a single element is called as Singleton set