What does this value mean?a$)$ The potato cube that goes into the $0\%$ water solution weighs $2\mathrm{.}78$ gramsb$)$ The potato cube weighs $2\mathrm{.}78$ grams at $0\%$ of the experimentc$)$ The potato cube that goes into the $0\%$ salt solution weighs $2\mathrm{.}78$ gramsd$)$ All of the potato cubes weigh $2\mathrm{.}78$ grams at the start of the experiment