10. Draw the Hasse diagram for
(a) the relation of set inclusion on the power set of \{a, b, c, d\}.
(b) the relation \"divides\" on the set \{1, 2, 6, 7, 9, 24, 27, 42, 54\}.
(c) the relation \"is a subset of\" on the set \{\{0\}, \{1\}, \{3\}, \{5\}, \{1,6\}, \{3, 5\},