Identify some of the challenges that chris gardner faced when trying to sell his bone density scanner

There are many challenges that Chris Gardner faced when he was trying to sell his bone density scanner. The scanner represents many things to Chris. Firstly, it represents money. Chris's challenge is to sell the scanner to help fund for his and his sons life while he is completing his internship at Dean Witter. Secondly, the scanner represents a burden for Chris. They represent the challenges that he had to overcome in his life, in order for him to go forward and establish a new life after the internship where he will have the finacial stability to offer a better life for his son. The scanners represent many challenges but they also offer hope.