Directions: Select the most appropriate filler(s) for the blank(s) such that the sentence makes coherent sense.

Moving at high speeds, vehicles _______________ their own light out of darkness.

'Own light out' provides the clue for this sentence. This implies that vehicles would create light out of darkness. All the other options are irrelevant as neither the vehicles show light nor do they stagnate light. The word 'produced' is incorrect in the form, instead 'produce' would have been appropriate word.  Vehicles reflecting light on their own out of darkness would be scientifically incorrect as initially they need some light source to reflect it later. Hence, (4) is the answer