The amount of heat that is supplied to a certain substance can be expressed through the equation,
H = mcpdT
where H is heat, m is the mass, cp is the specific heat of gravity, and dT is the temperature difference.
If all else are to be equal except the values of cp and dT then, they should be inversely proportional.
The heat capacities of the metals in the given are: (1) lead - 0.128 J/gK, (2) silver - 0.240 J/gK, (3) copper - 0.385 J/gK.
Since, lead has the smallest value for cp then it will have the highest dT.
Answer: lead