88, let gbe a group and let hand k be two subgroups of g. if both h and k have 12 elements, which of the follow- ing numbers cannot be the cardinality of the se

88, Let Gbe a group and let Hand K be two subgroups of G. If both H and K have 12 elements, which of the follow- ing numbers cannot be the cardinality of the set HK = hk:h e H, k e K}? ITIFR 2014] (a) 72 (b) 60 (c) 4 48 ) 36