A chef prepares a large bowl of salad dressing. He adds 3.9 cups of vinegar for every 7.8 cups of olive oil. Part A: Which statement best describes the situation? Let V be cups of vinegar and I be cups of olive oil. Part B: How many cups of olive oil are in a salad dressing containing 9.6 cups of vinegar? Select two answers: one for Part A and one for Part B.​