Pick out the wrong statement about powder metallurgy technique.

• A. Powder metallurgy techniques are applied at room temperature.
• B. Final product in powder metallurgy is not necessarily metallic powder.
• C. The final product in powder metallurgy is made from metallic powder.
• D. Silver and nickel when melted together do not mix to form an alloy ; however alloy of these constituents can be made by powder metallurgy technique.