12,12,18,36,90,()
A.252
B.262
C.270
D.284
12,36,80, 150,()A.201 B.216 C.248 D.252
:2,12,36,80,150,() A.250B.252C.253D.254
2,12,36,80,150,()A.250 B.252 C.253 D.254
2,12,36,80,150,() A.250B.252C.253D.254
2,12,36,80,150,() A.250 B.252 C.253 D.254
2, 12, 36,80, 150, ()A.250 B.252 C.253 D.254