Answer:C) It will expand as water moves into it
Explanation: The cell has 4% salt concentration while its external environment has 2% salt concentration, therefore there is more water concentration in the surrounding environment of the cell than within the cell. The result of this will be movement of water molecules from the external environment which has 2% salt concentration into the cell which have 4% salt concentration through a semi permeable cell membrane. The cell membrane is selectively permeable, therefore it cannot allow the passage of salt molecules. The movement of water from the area of 2% salt concentration (area of high water concentration) into the cell with a 4% salt concentration (an area of low water concentration) is to create an equilibrium in the concentration of the two environments. When water molecules move into the cell, it causes the cell to increase in size (expand).