Four clinics are considered using a DEA model. The efficiency score for Unit 1 is 0.90 and the results suggest that the reference set for this unit involves Unit 2 and Unit 3. Units 1, 2, and 3 have identical outputs but different levels of 2 inputs. Which of the following statements are NOT true about 100% efficiency? Group of answer choices Changing Unit 2 cannot make it better because 101% efficiency is not possible If Unit 1 changes it input levels to match Unit 3 it will be 100% efficient No composite unit which combines Units 1 and 2 will be more efficient than Unit 3 Unit 1 can be 100% efficient if it matches either Unit 2 or Unit 3 exactly None of these statements are true