Read the statements and choose the correct option as correct or incorrect. Statement A: Proper, common, material and collective noun come under concrete noun. Statement B: A proper noun may be used as a common noun. Statement C: Gold is a material noun but jewelry is an abstract noun. Statement D: Kennel is a collective noun but dog is a material noun.

• A. A and B are correct.    
• B.  B and D are correct.
• C.  C and D are correct.                 
• D.  A and C are correct.