Density of a substance is the mass per unit volume of that substance. Density values of a substance are constant.
Given the mass of the crown = 112 g
Volume of water displaced by the crown = 10.7 mL
Density of the crown =

=

The crown is supposed to be made of silver. The density of silver is 10.5g/mL. The calculated value of density from given mass and volume displaced by the crown is equal to the theoretical density value of silver.
So the correct answer will be that the crown is made of silver as the estimated density is equal to that to density of silver.