In a certain code, 'CAT' is coded as '3120'. How is 'DOG' coded if 'D' is 4, 'O' is 15, and 'G' is 7?

A. 4157

In a class, there are three types of students: A, B, and C. Type A students are good at mathematics, Type B students are good at science, and Type C students are good at literature. If John is a Type A student and Sarah is a Type B student, which of the following statements is true?

C. JOHN IS NOT GOOD AT LITERATURE

In a code language, 'FISH' is written as '9128'. What will be the code for 'BIRD'?

A. 2918

If 'SUN' is coded as '1914', what is the code for 'MOON'?

B. 1314

How many times does the letter 'A' appear in the series: A, B, C, A, D, A, E?

B. 3