Ringer’s solution is often given intravenously to patients experiencing dehydration. It contains water, 131mMol/L sodium, and 111mMol/L chloride ions. Why wouldn’t distilled water be used? Why doesn’t the solution contain higher amounts of sodium, chloride, and other electrolytes?

Ringer's solution seems to be osmotic pressure to animal bodily excretions. Distilled water has the highest moisture contents but lacks critical minerals.

Thus the response above is correct.

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It is important to maintain the osmolality of the blood (plasma) at an appropriate level to prevent osmosis into and out of cells by keeping the intra- and extracellular fluids isotonic;

Too much water entering a cell can lead to lysis and too much leaving a cell results in shrinkage, both of which are detrimental.