Easy stupid question what colour light do you see coming out of the prism? answer full sentence because I don't know how to answer it full sentence its not making sence

The table below shows the freezing points of four substances. substance freezing point (°c) benzene 5.5 water 0 butane –138 nitrogen –210 the substances are placed in separate containers at room temperature, and each container is gradually cooled. which of these substances will solidify before the temperature reaches 0°c? benzene water butane nitrogen