(A) : Magnetism is relativistic.
(R) : When we move along with the charge so that there is no motion of charge relative to us we find no magnetic field associated with the charge.

Options

A. Both 'A' and 'R' are true and 'R' is the correct explanation of 'A'.
B. Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A'
C. 'A' is true and 'R' is false
D. 'A' is false and 'R' is false

Answer

A