A proton moving with a constant velocity passes through a region without any change in its velocity. Then in this region:

E = 0, B = 0 E = 0, B ≠ 0 E ≠ 0, B = 0 E ≠ 0, B ≠ 0

E = 0, B = 0

The correct answer is Option (1) → E = 0, B = 0