Astudent throw the bag of dialysis tubing with a milky-white starch solution and placed the bag and a beaker of i o n water as shown in the diagram an hour later just didn't observe that the starch solution had turned blue black lyme disease( positive test for starch ) which is the most probable explanation for the change

a. the idle when diffused into the bag
b. the starch was changed to sugar
c. the iodine when was changed to starch
d. the starch diffuse out of the bag