Given set A = {0, 1, 2, 3, 4, 5, 6, 7, 8, …}, which of the following is a subset of A?

I.  Counting numbers                

II. Even numbers

III. Integers

IV. Whole numbers

A. II & III only

B. I, II, & III only

C. I, II, & IV only

D. I, II, III, IV

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