Answer :
In a resting potential, an example of a cation that is more abundant as a solute in the cytosol of a neuron than it is in the interstitial fluid outside the neuron is D. K+
The resting potential of a membrane is depicted through the gradient of ions that is present inside and outside the membrane of a cell. The voltage across a non-signaling neuron is referred to as resting potential of a cell.
Naturally, a cell tends to take in potassium ions and to remove the sodium ions. Hence, during a resting potential, the cytosol of a neuron will have an enhanced abundance of the K+ ions.
On the other hand, the concentration of the Na+ ions will be more outside of the cell as compared to inside of the cell.
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