In a coded system, 'CLOUD' is coded as '45678', 'SHINE' is coded as '12345', and 'MIND' is coded as '6789'. What is the code for 'DUNE'?
Answer: D. 6785
The common letters in 'CLOUD' and 'DUNE' are 'D' and 'U'. 'D' = 7 and 'U' = 8. 'DUNE' has 'D' = 7, 'U' = 8, 'N' = 9, and 'E' = 5, so the code is '6785'.