A laser is travelling at the speed of $0\mathrm{.}6c(c$ is speed of light$)$ and emits light in the direction of its motion.

What is the speed of the emitted light in the reference frame in which the laser is travelling? a$\mathrm{.}0\mathrm{.}3$c b$.0\mathrm{.}6$c c$.0\mathrm{.}4$c d$.1\mathrm{.}6$c $($Options may be wrong$)$