In a coding system, 'FISH' is represented as '614891'. What is the code for 'BIRD' if 'B' is 2, 'I' is 9, 'R' is 18, and 'D' is 4?

Answer: A. 29184
The code for 'BIRD' is formed by concatenating the numerical values of each letter: 2 (B), 9 (I), 18 (R), 4 (D) resulting in '29184'.