The number of letters skipped between adjacent letters are in the order 1, 2, 3, 4.. and so on. Which of the given options follows this rule?
DFINR
DFIMR
DFIMS
None of these
Dl=EFF2=G,HII3=J,K,LMM4=N,O,P,QR
So ‘DFIMR’ is the correct answer.