A sample of cancer cells from a breast cancer tumor were treated with various concentrations of a drug, drug X. The percent survival for these tumor cells is shown in the graph here. Which statements are supported by the experimental design and the data shown in the graph? Select ALL that apply. A * B 4x D The safest dose of the drug is 1000 micromolar concentration. C All concentrations of the drug show a decrease in cell survival compared to the control. E The cells survive but stop dividing at low concentration of the drug. Only concentrations above 100 micromolar for drug X allow for greater than 50% of the cells to die. The dose response curve indicates that higher concentrations of the drug are more effective at decreasing cell viability of the cancer cells.