Set X consists of all two-digit primes and set Y consists of all positive multiples of 6 less than 100. If the two sets are combined into one, what will be the range of the new set?  Choose the correct choice from the following options:
A) 84
B) 89
C) 90
D) 92
E) 91

Rationale: "set x = { 11 , 13 , 17 , . . . . . . . . . . . . . , 83 , 89 , 97 } set y = { 6 , 12 , 18 , . . . . . . . . . . . . . . . , 84 , 90 , 96 } combining two sets , say set z set z = { 6 , 11 , 12 , 13 , 17 , 18 , . . . . . . . . . . . . . . . . . . . , 83 , 84 , 89 , 90 , 96,97 } range = max value - min value range ( z ) = 97 - 6 = 91 oa e is the answer ."
Answer: E