An external pressure P is applied on a cube at 0∘C so that it is equally compressed from all sides. K is the bulk modulus of the material of the cube and α is its coefficient of linear expansion. Suppose we want to bring the cube to its original size by heating. The temperature should be raised by : [Main 2017]
a. PK3α
b. 3PKα
c. 3αKP
d. αKP