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 'G', 'O', 'O', 'D' correspond to the numbers 7, 15, 15, 4 respectively.