What is true about the structure or function of the plasma membrane? a.)molecules enter and exit the cell through vesicles in the plasma membrane.

b.) hydrophobic molecules keep the cell from getting too much water.

c.) the bilayer structure forms a solid boundary that separates the cell from its environment.

d.) it is made entirely of integral proteins.

Dis the correct answer thats what i put and it was right 

Mars and earth have quite a few things in common. both are  terrestrial planets, both are located within the sun’s  habitable zone, both have  polar ice caps, similarly  tilted axes, and similar  variations in temperature. and according to some of the latest scientific data obtained by rovers and atmospheric probes, it is now known that mars once had a  dense atmosphere  and was covered with  warm, flowing water.