If 'APPLE' is coded as '12345' and 'LEMON' is coded as '67890', what is the code for 'MELON'?

Answer: A. 78960
The letters 'M', 'E', 'L', 'O', 'N' correspond to '7', '8', '9', '6', '0' respectively, thus 'MELON' is coded as '78960'.