I also believe the answer is A.
If the pacific ocean was rimmed by the ring of fire we can conclude that the plate boundaries are constantly moving
<span><span>All cells have a plasma membrane, ribosomes, cytoplasm, and DNA.
</span>Prokaryotic cells lack a nucleus and membrane-bound structures.
<span>Eukaryotic cells have a nucleus and membrane-bound structures called organelles.</span></span>
