In a coding scheme, 'FISH' is coded as 'GJTK', and 'BIRD' is coded as 'CJSF'. What is the code for 'IS' based on the given codes?

Answer: A. JT
From 'FISH' (coded as 'GJTK'), 'I' is coded as 'J' and 'S' is coded as 'T', thus 'IS' is coded as 'JT'.