Tributaries of the Brahmaputra

Which of the following sequences or statements concerning tributaries of the Brahmaputra in Assam is/are not correct?

(i) The North bank tributaries (from West to East): Sankosh, Manas, Puthimari, Pagladiya

(ii) The South bank tributaries (from East to West): Buri Dihing, Bhogdoi, Dhansiri, Kopili

(iii) The North bank tributaries (from East to West): Jiadhal, Subansiri, Ranganadi, Jia Bharali

(iv) The River Barnadi forms a natural boundary between Darrang and Kamrup districts.

Select the correct answer using the codes given below:
(A) (i) only
(B) (i) and (ii) only
(C) (ii) and (iv) only
(D) (i), (ii) and (iii) only

(i) North bank tributaries (West to East): Sankosh, Manas, Puthimari, Pagladiya

 Incorrect

 The correct West to East order of north bank tributaries is:

Sankosh → Raidak → Manas → Beki → Puthimari → Pagladiya → Barnadi → Subansiri → Ranganadi → Jia Bharali

 The mistake:
Puthimari comes after Pagladiya, not before. Hence, the order is wrong.