An osmosis cell is constructed of a "U" shaped tube with a semipermeable membrane separating the two arms of the tube. Suppose a concentrated solution is placed in the left arm of the U-tube, and a dilute concentration of the same substance is poured into the other arm to the same height. After a period of time has elapsed, you would expect to find that
A) the level of liquid in the left arm is now higher.
B) the level of the liquid in the right arm is now higher.
C) the levels in both arms stay at the same height.
D) no molecules of any type cross the membrane.
E) none of the above
Answer: A