In a certain code, 'TREE' is represented as 20, 18, 5, 5 and 'BARK' is 2, 1, 18, 11. What is the code for 'LEAF'?

Answer: A. 12, 5, 1, 6
Using the same coding method, 'L' is 12, 'E' is 5, 'A' is 1, 'F' is 6.