Ii) choose the correct statement (s) (a) if s and t are two non-empty subset of r then sup (s ut) = max. {sup s, sup t} (b) if s and t are two non-empty subset

ii) Choose the correct statement (s) (a) If S and T are two non-empty subset of R then sup (S UT) = max. {sup S, sup T} (b) If S and T are two non-empty subset of R then sup (SUT) = min. finf S, sup T (c) If A and B are two non-empty subset of R then sup (A n B) = min. {sup A, sup B) (d) If A and B are two non-empty subset of R then sup (A n B) = max. finfA, infB}