Increase in Furniture Value is a gain, credited to Revaluation A/c (III). Depreciation on Machinery is a loss, debited to Revaluation A/c (IV). General Reserve is distributed to partners, credited to Partner's Capital A/c (I). Goodwill appearing in Books is written off, debited to Partner's Capital A/c (II). Hence A-III, B-IV, C-I, D-II.