2. a. List THREE (3) methods in which an interface designer can assist the use to manage user's attention. SIO NOTE: [NOTE: For each, draw and explain.] and explain.) din [6 marks] b. Information is stored in human in working, short-term or long-term memory. Sketch and explain the flow of how information received from stimuli can be kept in working or short-term memory and long-term memory. [6 marks] ST c. Explain the meaning of chunking with an examp [4 marks] ST d. Differentiate between slips and mistakes. [4 marks]