In a certain code,
'do what i will' is coded as 'nh fg rf dc'
'do you if i' is coded as 'rf dc fy hb'
'will are in not' is coded as 'nj oi fg wa'
'left you not i' is coded as 'rf hb sr oi'
(all the codes are two letter coded only)
What is the possible code for ‘are’?

do what i will → nh fg rf dc

do you if i → rf dc fy hb

will are in not → nj oi fg wa

left you not i → rf hb sr oi

code for ‘are’ is: 

do what i will → nh   fg   rf dc

do you if i → rf dc fy hb

will   are   in  not → nj   oi  fg  wa

left you not i → rf hb sr  oi 

Remaining for are → nj or wa

Final Answer:
Code for are = wa or nj

Final Correct Option:
(D)