Write down all the subsets of the given set.{p, q, r}

A. {p}, {q}, {r}, {p, q}, {p, r}, {q, r}, {p, q, r}
B. ?, {p}, {q}, {r}, {p, q}, {p, r}, {q, r}, {p, p}, {q, q}, {r, r}, {p, q, r}
C. ?, {p}, {q}, {r}, {p, q}, {p, r}, {q, r}
D. ?, {p}, {q}, {r}, {p, q}, {p, r}, {q, r}, {p, q, r}


Answer: D

Mathematics

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A.
B.
C.
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