There are equal concentrations of single-charged positive and negative ions (+e and -e) on either side of a cell membrane, but the outside of the membrane has higher concentrations than the inside of the membrane. If the membrane allows only positive ions to diffuse across it, what will happen?

Can you please help solve this problem. Thank You!

A. A net negative charge will build up inside the cell, and the low concentration side of the membrane will be at a higher electric potential.

B. A net negative charge will build up outside the cell, and the high concentration side of the membrane will be at a higher electric potential.

C. A net negative charge will build up outside the cell, and the low concentration side of the membrane will be at a higher electric potential.

D. A net negative charge will build up inside the cell, and the high concentration side of the membrane will be at a higher electric potential.