Elasitcity of a meterial can not be changed

Options

A. by adding an impurity of higher elasticity
B. by adding an impurity of less elasticity
C. by increasing or decreasing the magnitude of the deforming force
D. by increasing the temperature of the body

Answer

C

Explanation

Elasticity of a material is changed by changing temperature or by adding impurities. But the deforming force cannot change the elasticity because elasticity depends upon the material.