Please help with the following

2. (a) Let A={1,2,3},B={{1},2,{1,3}},C={1,{1},3}. Describe each of the following sets by listing its elements: Pow(AC)B,(AB)(AC),(BC)A.(2marks)(2marks)(2marks) (b) Consider the following relation on the set {a,b,c,d} : R={(a,b),(a,c),(b,c),(c,d),(d,a),(d,d)}. Is R irreflexive? Is R antisymmetric? (2 marks) (2 marks) (2 marks) (2 marks) (2 marks) Is R symmetric? Is R transitive? Is R a partial order? Explain all your answers. (c) Determine which pairs of the following graphs G1,G2 and G3 are isomorphic and which are not, and explain your answer: (9 marks)