In a coding system, 'HELLO' is coded as 8, 5, 12, 12, 15. If 'WORLD' is coded as 23, 15, 18, 12, 4, what is the code for 'GOOD'?

Answer: A. 7, 15, 15, 4
The letters correspond to their positions in the alphabet, thus 'G' is 7, 'O' is 15, 'O' is 15, and 'D' is 4.