[单选题]
A student placed 13 potal hd ;bbvbr50,klm(6 x p26mhgtnk6k 5n5j*x08etr( yoyngmg 3o cylinders in a hypotonic solution and 13 potato cylinders in a hypertonic solution. The student then calculated the mean percent change in length, and stand5n g8*te ko6rg03m n5ny( kxyjard error. Below are the results. Which of the answer choices can be concluded?
A. Mean potato length for the hypotonic treatment was significantly longer.
B. There is unlikely to be a significant difference in mean length between the two groups.
C. Solutes in potatoes placed in the hypotonic diffused out of the potatoes.
D. There is a 95% probability that the potatoes in the hypotonic solution are significantly longer.
