Four large tanks at a chemical plant contain different liquids being heated.  Liquid-level sensors are being used to detect whenever the level in tank A or tank B rises above a predetermined level.  Temperature sensors in tanks C and D detect when the temperature in either of these tanks drops below a prescribed temperature limit.  Assume that the liquid-level sensors outputs A and B are LOW when the level is satisfactory and HIGH when the level is too high.  Also, the temperature-sensor outputs C and D are LOW when the temperature is satisfactory and HIGH when the temperature is too low.  Design a logic circuit that will detect whenever the level in tank A or tank B is too high at the same time that the temperature in either tank C or tank D is too low. 

When the Alarm goes off there are flashing red LEDs to signify it.