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Test: * * Real Test 1 (Ch1 & Ch2) This Question: 1 pt 21 of 25 List all the subsets of {wolf, cat, cow}. O A. {wolf, cat}, {wolf, cow}, {cat, cow}, {wolf}, {cat}, {cow}, { } O B. {wolf, cat, cow}, {wolf, cat}, {wolf, cow}, {cat, cow}, {wolf}, {cat}, {cow} O C. {wolf, cat, cow), {wolf, cat}, {wolf, cow}, {cat, cow}, {wolf}, {cat}, {cow}, {} O D. {wolf, cat), {wolf, cow}, {cat, cow}, {wolf}, {cat}, {cow}Test: ** Real Test 1 (Ch1 & Ch2) This Question: 1 pt Let U = {q, r, s, t, u, v, w, x, y, z}. A = {q, s, u, w, y}, B = {q, s, y, z}, and C = {v, w, x, y, z}. Determine the elements of the set shown below. Bn (A-C) O A. {q, r, s, t, u, v, w, x, y} O B. {q, s} O C. {q, s, u, y} O D. {q, s, u, y, z}