Question ID:PT7 S2 Q10 Passage:Doctor Yamata works only on Mondays, Tuesdays, Wednesdays, Fridays, and Saturdays. She performs four different activities—lecturing, operating, treating patients, and conducting research. Each working day she performs exactly one activity in the morning and exactly one activity in the afternoon. During each week her work schedule must satisfy the following restrictions: She performs operations on exactly three mornings. If she operates on Monday, she does not operate on Tuesday. She lectures in the afternoon on exactly two consecutive calendar days. She treats patients on exactly one morning and exactly three afternoons. She conducts research on exactly one morning. On Saturday she neither lectures nor performs operations. Stem:Which one of the following statements must be true? Correct Answer Choice:EChoice A:There is one day on which the doctor treats patients both in the morning and in the afternoon. Choice B:The doctor conducts research on one of the days on which she lectures. Choice C:The doctor conducts research on one of the days on which she treats patients. Choice D:The doctor lectures on one of the days on which she treats patients. Choice E:The doctor lectures on one of the days on which she operates.