Question

Given that S = { a, b, c, d , e } and T = { a, c, e }, then one of these is untrue (a) T is a subset of S (b) T⊆S (c) S≠T (d) S⊆T
A = {x / x is an odd number between 5 and 21} is same as------------ (a) A = {5,7,9,11,13,15,17,19} (b) A = {5,7,9,11,13,15,17,19,21} (c) A = {x : x is an odd number between 5 and 21} (d) A = {7,9,11,13,15,17,19,21}