What is the rate of melting of a low frequency induction furnace per kW rating?

• A. 2 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 3 kg/hr
• B. 2 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 3.5 kg/hr
• C. 3 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 4 kg/hr
• D. 3 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 4.5 kg/hr