In a coding system, 'FISH' is represented as '6148'. If 'H' is 8, 'I' is 9, 'F' is 6, and 'S' is 19, how is 'HIS' coded?

Answer: C. 819
The code for 'HIS' is formed by concatenating the numerical values of each letter: H=8, I=9, S=19, resulting in '819'.