The true statement about the relationships between the number sets is:
Whole numbers include all natural numbers and 0.
Here's a quick breakdown of why the other statements are false:
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Some irrational numbers are also integers: This is false because irrational numbers cannot be expressed as fractions, while integers are whole numbers (positive, negative, or zero).
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Not all natural numbers are real numbers: This is false because all natural numbers (1, 2, 3, ...) are included in the set of real numbers.
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All rational numbers are also integers: This is false because rational numbers include fractions (like 1/2), while integers are whole numbers without fractions.
So, the correct answer is the first statement.