List all the elements of the following sets: (i) A = {x : x is an odd natural number} (ii) B = {x : x is an integer, 1/2 < x < 7/2} (iii) C = {x : x is an integer, x² ≤ 4} (iv) D = {x : x is a letter in the word “LOYAL”} (v) E = {x : x is a month of a year not having 31 days} (vi) F = {x : x is a consonant in the English alphabet which precedes k}