Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
a_ca_c_dc_d_ad_

• ddacdc

• daadca

• dadaac

• dadaac

• NIL

• NIK

• NLK

• NLK

Choose the correct alternative from the given ones that will complete the series:
BFK, KOT, UYD,   ?

• BFJ

• ADG

• FJO

• FJO

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

ABC, BEH, CHM, ?, ENW

• DKS

• DJP

• DLS

• DKR

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

CAT, DBT, ECT, ? 

• DCT

• FDT

• FCT

• FAT

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

CL, HQ, MV,?

• RA

• QZ

• SB

• TC

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

XFB, UGD, RIG, OLK,?

• OLI

• LNK

• LPP

• OLM

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

LMA, NOB, PQC, ?, STE

• TUV

• RSD

• DOA

• BRD

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

BXM, EUP, HRS, ?

• XZY

• RPN

• VTU

• KOV

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

IGT, JHS, KIR, LJQ, MKP,?

• LOP

• NOP

• NLO

• LNO