Specific heat is

• A. The amount of heat required to raise the temperature of a unit quantity of substance through 1?C
• B. The amount of heat requred to change the state or condition under which a substance exists without changing its temperature
• C. The ratio of quantity of heat required to raise the temperature of a given weight of any substance through 1?C to the quantity of heat required to raise the temperature of same weight of water through 1?C
• D. The heat sensed by a mercury thermometer
• E. None of the above