Metamorphic rock can form from

sedimentary rock
magma
metamorphic rock
igneous rock

The correct options are: sedimentary rock, metamorphic rock and igneous rock

Explanation:

Metamorphic rocks are the rocks that are formed from the existing metamorphic rocks, sedimentary rocks, or the igneous rocks.

These metamorphic rocks are formed when the existing metamorphic rocks, sedimentary rocks, or the igneous rocks, are subjected to high temperature and high pressure conditions, which brings about a physical or chemical change in the rocks.

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