A) 168
B) 144
C) 344
4 x 2 + (4 – 2) = 8 + 2 =10
10 x 2 + (10 – 2) = 20 + 8 = 28
28 x 2 + ( 28 – 2)= 56 + 26 = 82
82 x 2 + (82 – 2)= 164 + (82 -2)= 164 + 80= 244
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