The steps in an investigation involving plant tissue are shown below. A freshly cut piece of plant tissue was rinsed with distilled water, blotted dry and weighed. This piece was then placed in a solution with a water potential of $-4$ arbitrary units for thirty minutes. It was taken out of the solution, dried and weighed again. Its mass was unchanged from its original mass. What conclusions may be made from this investigation?
- A1 and 2
- B1 and 3
- C2 and 4
- D3 and 4