Acell is placed in a water solution with the same salt concentration as the cell. the cell is placed in a hypotonic solution hypertonic solution isotonic solution

Isotonic solution

Isotonic solution is the solution in which the concentration of a solute is the same inside and outside of the cell. The concentration of solute is at equilibrium inside and outside of the semi- permeable membrane of the cell. The shape of the cell will remain unchanged as neither water nor solute will come out or enter the cell.

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.