Relative permittivity and permeability of a material are ε1 and mu1 respectively. Which of the following values of these quantities are allowed for a diamagnetic material?
A. εr = 1.5, mur = 0.5
B. εr = 0.5, mur = 0.5
C. εr = 1.5, mur = 1.5
D. εr = 0.5, mur = 1.5