Correct option is D
A. Unpaid seller: Section 45, Sale of Goods Act, 1930 (A-II).
B. Caveat emptor and its exceptions: Section 16, Sale of Goods Act, 1930 (B-I).
C. Minor admitted to benefits of partnership: Section 30, Indian Partnership Act, 1932 (C-III).
D. Registration of partnership: Section 69, Partnership Act, 1932 (D-IV).