The Impact of a Large Meteorite with Earth Would Have

The impact of a large meteorite with Earth would have most likely caused mass extinctions by

A) creating large clouds of dust that blocked out sunlight.
B) creating large clouds of dust that blocked out sunlight and destroying plant life.
C) causing a great prolonged rise in the earth's temperature and destroying plant life.
D) causing a great prolonged rise in the earth's temperature.
E) destroying plant life on earth.