Heat capacity of a substance is equal to

• A.  amount of heat required to raise temperature of a 11% of a substance by 1 K
• B.  amount of heat required to raise temperature of a substance by 1 K
• C.  amount of heat required to change phase of a substance from solid to liquid without any change in temperature
• D.  amount of heat required to change phase of a substance from liquid to gas without any change in temperature