Researchers want to determine whether all frozen pizzas have the same proportion of toppings regardless of the brand of pizza. To test this, they sampled randomly pizzas of each brand and recorded their findings in the table. Brand Topping Pepperoni Sausage Onion Mushrooms Digiorno 14 21 17 17 Tombstone 11 8 10 6 Red Baron 17 13 14 11 Tony's 9 17 15 18 Part A : What are the correct degrees of freedom for this table? (2 points) Part B: Calculate the expected count for the number of pepperoni for Red Baron pizza. Show your work. (3 points) Part C: Is there sufficient evidence that there is a difference in the proportion of toppings for the different brands of pizza? Provide a statistical justification for your conclusion. (5 points)