In a certain code, 'SUN' is represented as 19, 21, 14 and 'MOON' is represented as 13, 15, 15, 14. What is the code for 'STAR'?

Answer: A. 19, 20, 1, 18
The letters correspond to their positions in the alphabet: 'S' is 19, 'T' is 20, 'A' is 1, 'R' is 18.