C: Miền Bắc. (56 Số GĐB, 60k/s) 02,03,05,06,07,08,09,23,24,25,26,27,28,29,32,34,35 ,36,37,38,39,42,43,45,46,47,48,49,52,53,54,56,57,5 8,59,62,63,64,65,67,68,69,,82,83,84,85,86,87,89,92 ,93,94,95,96,97,98