Microeconomics Exam Practice: Demand Curve Shifts

Refer to the demand curves shown in the graph above. Which of the following would be most likely to cause the demand for Dr. Pepper to shift from $D_0$ to $D_1$?

If the demand curve for Dr. Pepper shifts from $D_0$ to $D_1$, what happens to the equilibrium price and quantity, ceteris paribus?

Suppose the shift from $D_0$ to $D_1$ was caused by a negative news report about the health effects of Dr. Pepper. Which of the following best describes this scenario?