Explain how these developmental stages might be explained in terms of the human brain implementing a connectionist network$/$ANN$.5$ points. $($a$)$ What are the key features of a connectionist network$/$ANN$?($b$)$ How does a connectionist$/$ANN explanation of the stages of past$-$tense language learning differ from the physical symbol system explanation you considered in your second paragraph? $($c$)$ How does a connectionist$/$ANN explanation of the balance$-$beam problem differ from the physical symbol system explanation you considered in your second paragraph?