We will perform a statistical test to determine if a drug treatment has caused a significant change in the worm's physiology. These often test the significance of what is called a 'null hypothesis'. The null hypothesis states that there is no difference between the worms treated with the drug and the worms treated with water. As your lab manual states, "if the null hypothesis is accepted, the difference between the observed and expected data is attributed to random variation. If the null hypothesis is rejected, a significant difference between the two data sets does exist". What would be an example of the null hypothesis for the experiment outlined in Exercise 15? [Ex. 15, Section 2, and Ex. 19, Section 'Introduction'] Option A each of the different drugs tested will show the same effect Option B there is no difference between worms treated with the drug and the worms treated with water Option C worms treated with the drug differ significantly from worms treated with water Option D all of the different drugs tested will show a different effect Option E the concentration of the drug tested will not affect the results