If the code for 'CAT' is 12, 15, 18 and the code for 'DOG' is 14, 17, 20, what is the code for 'BIRD'?

Answer: A. 10, 12, 14, 16
The pattern shows that each letter's position in the alphabet is increased by a certain number. Following this pattern, 'BIRD' corresponds to the numbers 10, 12, 14, 16.