a) Briefly explain the meaning and importance of: Ergonomics & usability, non-intentional design, and biomimicry concept in industrial product design. And show with support of examples and sketches how they could help towards developing effective and innovative products and hence improving the product design process and functionality. [4 Marks] b) Briefly explain the different type of control systems (at least 4-types) and show the difference between open loop and closed loop systems. Support your answer with examples and [4 Marks] sketches. c) Using actuator function daigram, explain what is actuator, its types/classifications, energy source and control signals. Support your answer with examples and sketches. [3 Marks]