A patient experienced great blood loss. In an attempt to quickly replenish body fluids, a volume of distilled water equal to the blood lost was introduced directly into a blood vein. What is the most likely result of this treatment?

a-
The red blood cells are in danger of bursting because they were subjected to a hypotonic environment.

b-
The red blood cells should be fine because they were subjected to an isotonic environment.

c-
The red blood cells are in danger of shrinking because they were subjected to a hypertonic environment.

d-
The red blood cells are unaffected because distilled water shares the same pH with the intracellular region of red blood cells.