In a family of four members A, B, C, and D, A is a doctor, B is a teacher, C is D's mother, and D is a student. What is B's relationship to D?

A. FATHER

In the series A, B, C, D, E, F, G, how many letters are there before the letter D?

B. 3

If the word 'FISH' is coded as '6-9-19-8', what is the code for 'BIRD'?

A. 2-9-18-4

If the input is 'dog cat mouse', and the first step is to reverse the order, what is the output?

B. MOUSE CAT DOG

If the letter Z is the 26th letter, what is the 20th letter of the alphabet?

A. T