The solution that the animal cell is placed in is called hypertonic.
Hypertonic solution refers to a solution with a higher concentration of solutes compared to another solution. In this case, the beaker full of 4.3M NaCl has a higher concentration of solutes compared to the 0.1M NaCl in the animal cell.
As a result, water molecules will move out of the cell in an attempt to balance the concentration of solutes on both sides of the cell membrane. This can cause the cell to shrink or undergo plasmolysis.