Question

Which of the following bullets leaves a visible mark, so that a person can see its path:

• A. Tandem bullet
• B. Tracer bullet
• C. Dum dum bullet
• D. Incendiary bullet

Hint:

Which bullet is made to glow so the shooter can follow its flight?

Answer 1

The Correct Option is B

Decode the question by what each special bullet is built to do, then match it to the phrase visible mark along its path. The only round designed to be seen in flight is the tracer. It packs a small pyrotechnic compound in its base that ignites on firing and burns as the projectile flies, drawing a bright luminous streak through the air so the marksman can watch the trajectory and adjust fire. That is precisely the visible-track description, so option B is the answer. The other three serve completely different purposes. A tandem bullet describes the situation where one bullet stuck in the bore is driven out just ahead of the next shot, a barrel-obstruction phenomenon with no glowing trail. A dum dum is an expanding soft-point round meant to deform and create a larger wound channel on impact, again nothing to do with flight visibility. An incendiary bullet holds a fire-starting agent that flares when it strikes the target, so its effect appears at impact rather than as a steady streak across the sky. Since only the tracer is engineered to leave a seen path, the choice is clear. $B$ is correct. \[\boxed{\text{Tracer bullet}}\]