[Solved] The characteristic line is graphically depicted as: A)the plot of the relationship between beta and expected return. B)the plot of the returns of the security against the beta. C)the plot of the security returns against the market index returns. D)the plot of the beta against the market index returns. E)None of the above. Optical Microscopes: Instruments that use visible light and a system of lenses to magnify small objects, allowing for the observation of details not visible to the naked eye. Physicians' Office Laboratories: Labs located within a physician's office where various tests are performed on clinical specimens to obtain information about the health of a patient. Objectives: The set of magnifying lenses contained in the nosepiece of a compound microscope. Optical Microscope: An instrument that uses visible light and a system of lenses to magnify images of small subjects.