In a certain code, 'RAT' is coded as '18920'. How is 'BAT' coded?

A. 21920

In a certain code, 'DOG' is coded as '415'. How is 'CAT' coded in the same language?

A. 312

In a coding system, 'FISH' is represented as '6148'. What is the code for 'HIS'?

A. 814

If 'RAT' is coded as '918', what is the code for 'ART'?

B. 981

If 'SUN' is coded as '191421', what is the code for 'MOON' if 'M' is 13, 'O' is 15, and 'N' is 14?

A. 131514