Rectify the following errors by passing entries:
(i) Credit sale of old furniture to Mohan for 1,500 was posted as 5,100.
(ii) Goods purchased from David Rs.2,000 passed through sales book.
(iii) Sales Book has been totaled Rs.2,000 short.
(a) Furniture A/c Dr. 3,600 and Mohan Cr. Rs.3,600.
(b) Purchase A/c Dr.2,000; Sales A/c Dr.2,000 and David Cr.4,000.
(c) Suspense A/c Dr.2,000 and Sales A/c Cr.2,000.