I do believe the answer is B
<span> water has a tendency to move across a membrane from a lower osmolarity to a higher osmolarity.
</span>
<span>When red blood cells are placed in distilled water, which is hypotonic compared to the solution contained within the cells' membranes, the distilled water will diffuse into the red blood cells and cause them to burst.</span>
Gravitational is only attracted and electromagnetic is both atrractive and repulsive since it depends what you are talking about