1.17, 29, 43, 61, 87, ( )
A.167 B.115 C.259 D.129
2.1, 11, 31, 512, 196, ( )
A.9999 B.999 C.888 D.8888
3.1/3,1,9,243,( )
A.19683 B.19785 C.19827 D.19869
4.2,1,6,14,40,108,( )
A.288 B.296 C.304 D.312
5.3, 10,31,94,( ),850
A.250 B.270 C.282 D.283