An animal cell that is placed in a hypertonic solution will _________ because water will move _______ the cell.

a. burst, into
b. burst, out of
c. shrink, into
d. shrink, out of

c. shrink, into

To determine the correct answer, we need to understand the concepts of hypertonic solutions and the movement of water in cells.

A hypertonic solution refers to a solution with a higher concentration of solutes (dissolved particles) compared to the concentration of solutes inside the cell. In this case, when an animal cell is placed in a hypertonic solution, water molecules will tend to move in and out of the cell in an attempt to achieve equilibrium.

Now, let's analyze the options given in the question:

a. Burst, into: If water were to move into the cell, it would cause the cell to expand and potentially burst. However, this is not what happens in a hypertonic solution where the concentration of solutes is higher outside the cell.

b. Burst, out of: This option is incorrect because, in a hypertonic solution, water moves outward from the cell due to the higher concentration of solutes outside the cell. The cell would not burst, but instead, it would shrink.

c. Shrink, into: Since the hypertonic solution has a higher solute concentration outside the cell, water will move out of the cell to try to balance the concentration. As a result, the animal cell will shrink due to the loss of water.

d. Shrink, out of: This option is incorrect because, in a hypertonic solution, water moves out of the cell, causing the cell to shrink rather than expand.

Based on this explanation, the correct answer is:
c. Shrink, into

An animal cell that is placed in a hypertonic solution will shrink because water will move out of the cell.

So, the correct answer is c. shrink, out of.