In a coded relation, if M + N means M is the daughter of N, M - N means M is the son of N, and M × N means M is the grandfather of N, what is the relationship of O if M + O - N?

A. O IS THE SON OF N

In a class of 30 students, John is ranked 12th from the top. What is his rank from the bottom?

B. 18TH

Given the input words: 'apple banana cherry date', which of the following is the correct output after rearrangement?

B. CHERRY DATE APPLE BANANA

If 'A' is coded as 'Z', 'B' as 'Y', and 'C' as 'X', what is the code for 'FISH'?

A. URHS

Five students - X, Y, Z, W, and V - scored different marks in an exam: 85, 90, 75, 80, and 95. X scored more than Y but less than Z. W scored the highest. V scored less than Y. Who scored 90?

C. Z