The set of real numbers ℝ consists of:

AOnly natural numbers

BOnly integers

CBoth rational AND irrational numbers

DOnly positive numbers

Answer & Solution

Correct answer: C. Both rational AND irrational numbers

Real numbers ℝ are the union of all rational and all irrational numbers — together they fill the number line completely with no gaps. Natural numbers, whole numbers, integers and rationals are all subsets of ℝ.

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