Science, who ever gets this will get a brainlest. answers

Metamorphic

Volcanic

Igneous

Sedimentary

sedimentary i think

Explanation:

Rock A sedimentary

Rock B Metamorphic

Explanation:

Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at the Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles to settle in place.

Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.