Answer :
The weight change of a potato cube depends on osmosis and the concentration of the surrounding solution. It will increase in weight in a salt solution. Without context, the precise change in weight is indeterminable. Correct option is a .
When considering what will happen to the weight of a potato cube, we must consider the environment the potato cube is being placed in. If the cube is in a solution with a different concentration than its own cellular fluid, osmosis may occur. For instance, if the potato cube is placed in distilled water, water will move into the potato cells, causing the cube to increase in weight due to the higher concentration of solutes within the cells compared to the surrounding solution. Conversely, if placed in a highly concentrated salt solution, water would move out of the cells, leading to a decrease in weight. Without additional context, we cannot definitively answer whether the cube will increase, stay the same, or decrease in weight; it entirely depends on external conditions affecting osmosis.