Answer:
1000 g of water
Step-by-step explanation:
1000 g of water has the greatest heat capacity.
The heat capacity of a body is the amount of heat required to increase or change the temperature of body by 1k.
A heat conductor especially metal has low heat capacity because little amount of heat added to them will yield a monumental increase in their temperature.
Steel is conductor and readily allows heat to flow.
Water has a very large heat capacity because it is poor conductor. A significant amount of heat must be added to increase its temperature significantly.
The more the mass, the greater the heat capacity