In a certain coding system, 'COLD' is coded as '1357' and 'WARM' is coded as '2468'. What is the code for 'MOLD'?

Answer: A. 2467
The letters 'M', 'O', 'L', and 'D' can be analyzed from the codes of 'WARM' and 'COLD', leading to 'MOLD' being coded as '2467'.