On August 27th, 1883, the Indonesian island of Krakatoa, home to a highly volatile volcano, disappeared overnight in a display of stunning geological prowess that continued ____________ even after the island had vanished, as a series of massive seismic shocks created a tsunami with waves of 150-feet high that traveled nearly a thousand miles. A. furtively B. haphazardly C. undiminished D. hypothetically E. retroactively