14. let g be a group of order 20 in which the conjugacy classes have sizes 1,4, 5, 5, 5. then which of the followings is/are true? fadgc anga r. (a) gcontains a

14. Let G be a group of order 20 in which the conjugacy classes have sizes 1,4, 5, 5, 5. Then which of the followings is/are TRUE? FADGC ANGA R. (a) Gcontains a normal subgroup of order S i (b)Gcontains a non-nonnal subgroup of order 5 (c)Gcontains a subgroup oforder 10 IIT-JAM 2017-MAJ (d) G contains a normal subgroup of order 4