Assertion (A) : Non-polar materials do not have any permanent dipole moment.
Reason (R) : When a non-polar materials is placed in an electric field, the center of the positive charge distribution of it's individual atom or molecule coincides with the centre of the negative charge distribution.

Options

A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
B. Both (A) and (R) are correct and (R) is not the correct explanation of (A)
C. (A) is correct but (R) is not correct
D. (A) is not correct but (R) is correct