Organic light emitting diode Liquid crystal display (OLED) (LCD) Power 2.0 W 3.0 W consumption Usable light output 0.38 W 0.25 W powera) What is the efficiency of the OLED screen? (2 points) b) What is the efficiency of the LCD screen? (2 points) c) Which screen is likely to run hotter? Why? (1 point) d) Assuming the production of the screens has an equivalent environmental impact, which screen is more sustainable? Why? (1 point)