C. SUBSET OR PROPER SUBSET? Write PS if set A is a proper subset of set B. Write S if set A is a subset of set B but not a proper subset of set B. If none of the two, write the symbol for not subset, £. 1. A = {a, b, c, d); B = {c, b, a, d) 2. A = {dog, cat}; B = {cow, cat, dog, goat} 3. A = {x} x is a whole number from 2 to 4}; B = {x} x is a whole number from 1 to 4} 4. A = {run, jump, cut, write); B = {run, jump, write, put, cut} _5. A = {10, 9, 8}; B = {7, 8, 9,10​