b$)$ In our classes we considered $HCl$ to comprise the Human Factors $($the $H),$ the Computer factors $($the $C)$ and the Interaction $($the I$)$ and we said the Interaction is all about letting the Humans do what they do well and let the Computers do what they do well. Briefly describe any $3$ human factors that play an important role in $HCl.[9]$