Please give me right answer

Arrange the following principles and canon according to their levels as enunciated by Dr. S.R. Ranganathan:
(i) Principles of cataloguing (ii) General Normative Principles
(iii) Laws of Library Science (iv) Canons of Cataloguing
Codes:

(A) (i) (vi) (iii) (ii)
(B) (ii) (iii) (iv) (i)
(C) (ii) (i) (iv) (iii)
(D) (i) (iv) (ii) (iii)

Assertion (A): Provision of service outside the library regular service centre or outlet is
Essential to reach more and more patrons.
Reason (R): Library extension services help libraries to cover larger population of patrons. 
(A) (A) is true but (R) is false 
(B) (A) is false but (R) is true
(C) Both (A) and (R) are true 
(D) Both (A) and (R) are false

36. Arrange the following chronologically according to their development:
(I) Punched Card (II) Floppy Disc (III) Magnetic Disc (IV) Optical Disc
Codes:

(A) (II), (III), (I), (IV)
(B) (I), (III), (II), (IV)
(C) (I), (II), (III), (IV)
(D) (IV), (I), (II), (III)