List all the subsets of {bear, hen, pig
A. {bear, hen, pig}, {bear, hen}, {bear, pig}, {hen, pig}, {bear}, {hen}, {pig}>
B. {bear, hen, pig}, {bear, hen}, {bear, pig}, {hen, pig}, {bear}, {hen}, {pig}
C. {bear, hen}, {bear, pig}, {hen, pig}, {bear}, {hen}, {pig}
D. {bear, hen}, {bear, pig}, {hen, pig}, {bear}, {hen}, {pig}