In a mixed letter coding system, 'FISH' is coded as '6142', 'BIRD' as '2134', and 'HARE' as '4253'. What is the code for 'H'?
Answer: C. 6
The letter 'H' appears in 'FISH' and is coded as '6'. It does not appear in 'BIRD' or 'HARE' with a different code, confirming that 'H' is consistently coded as '6'.