You Are Doing a Summer Internship in a Cell Biology

You are doing a summer internship in a cell biology lab.Your supervisor asks you to change the medium on some cells she is growing.You do so and then examine the cells under a microscope.To your dismay,you can't find any cells and see only what looks like cell debris.What most likely happened to your cells and why?

A) The cells shrank because the new medium was hypotonic to the cells.
B) The cells shrank because the new medium was hypertonic to the cells.
C) The cells burst because the new medium was hypertonic to the cells.
D) The cells burst because the new medium was hypotonic to the cells.
E) The cells burst,although the new medium could not have been the cause.