A B D E (iii), (iv) (ii) (i) All None Which of the following are true? (i): If (R,+) is an abelian group and is a binary operation on R such that for any a, b E R, we have a b=0 the "identity of the group (R, +), then (R, +, ) is a ring. (ii): (Z₂ x Z3, +,-) = (Zo, +,.). (iii): Suppose R is a ring with no identity and R > 2. The function f: R→ R,x-x is a ring homomorphism. (iv): Suppose R is a ring and a, b e R. Then (a + b)² = a² + 2ab + b². ***

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