- AH
- BI
- CK
- DJ
Step-by-Step Solution
The place numbers of the two letters are added, and the total names the answering letter. B is 2nd and C is 3rd, and 2 + 3 = 5, which is E. D is 4th and F is 6th, and 4 + 6 = 10, which is J. 'I' is 9th and 'K' is 11th, the two off-by-one counts. 'H' is 8th, which comes of doubling the first letter — a rule that would have turned B into D rather than E.
Answer: D) J