Question

in order for minerals to crystallize from magma, what must happen?
the magma must melt.
the magma must evaporate.
the magma must cool and crystallize
the magma must condense and liquify.

Explanation:

Minerals crystallize from magma when it cools. Cooling causes the molten material (magma) to solidify and form crystals. Melting would keep it in a liquid state, evaporation is for liquids turning to gas (not relevant here as magma is molten rock, not a liquid in the traditional evaporation - context), and condense and liquify are not the processes for magma to form crystals from its molten state.

Answer:

The magma must cool and crystallize.