If the specific heat capacity of iron is 0.108 cal/gC. Then how much heat is sufficient to raise the temperature of 1g of iron through 1C.

The specific heat capacity of a substance is the heating capability of an example of the substance divided by the mass of the substance. It is, thus, the quantum of energy that must be added, in the form of heat to one- unit mass of the substance in order to beget an increase of one unit of temperature. 
In other words, the specific heat capacity of a material is the energy needed to raise one kilogram(kg) of the material by one degree Celsius (°C). For illustration, the specific heat capacity of water is,200 joules per kilogram per degree Celsius, 
Now that we know the meaning of specific heat capacity let us break the sum, 
Specific is the quantum of heat needed to raise the temperature of a unit mass of substance through 1 degree. 
Now it's given that the specific heat capacity of iron is0.108 cal/GC, it means that0.108 cal. thus, only 0.108 calories of heat is enough to increase the temperature of 1 gram of iron through 1Celcius. 
Hence, the correct answer is option A.