An impermeable membrane separates a one liter solution of 1M NaCl in the left compartment from a one liter solution of 2M KCl in the right compartment. At 2 AM the membrane became permeable to sodium ions. At 4 AM the membrane also became permeable to potassium ions while maintaining its permeability to sodium ions. The amount
A. of sodium ions in the left compartment at 3 AM is equal to the amount of sodium ions in the left compartment at 1 AM.
B. of potassium ions in the left compartment at 5 AM is equal to the amount of potassium ions in the right compartment at 5 AM.
C. of sodium ions in the left compartment at 3 AM is equal to the amount of sodium ions in the left compartment at 5 AM.