If the second half of the given alphabet series is written in reverse order, which letter will be seventh to the right of the twelfth letter from the left end? 

1. R 

2. S 

3. U 

4. T

 There are seven books, one each of Psychology, Hindi, English, Sociology, Economics, Education and Accountancy lying on a table one above the other. Sociology is on the top of all books. Accountancy is immediately below Education which is immediate below Sociology. Economics is immediately above Psychology but not in the middle. Hindi is immediately below Psychology. What is correct order top to bottom?

(b) Sociology, Education, Accountancy, Economics, English, Psychology, Hindi 

(c) Sociology, Education, English, Accountancy, Economics, Psychology, Hindi 

(d) Sociology, Accountancy, Education, English, Economics, Psychology, Hindi