If anyone has right answer please reply.

Q-1 Find out from following which is not research type?
A. Observation
B. Empirical
C. Fundamental rules
D. Fundamental laws

Q-2 On which the books were being written at Assyria and Babylonia?
A. Brick
B. Palm paper
C. Peace of woods
D. Intermittent of Burch tree

Q-3 In which year issue return method established by Dr.Ranganathan is come?
A. 1937 B. 1932 C. 1935 D. 1933