I’m not sure but it might be B.
An example of a transform (strike-slip) plate boundary is b) San Andreas fault.
Answer: it is the rock formed within the rocks crust.
Explanation: Rocks formed from magma are called igneous rocks. Intrusive igneous rocks form when magma cools inside the Earth. Rocks that form from magma erupting onto the Earth's surface are called extrusive igneous rocks. Extrusive igneous rocks have little to no time to crystallize and, as a result, the crystals are very small or microscopic.
More carbon dioxide is stored in the ocean water, making it more acidic, which is dangerous for most corals and many animals with small niches