Answer: Martha holding on to stocks that have poor market performance for three years is clearly an investing mistake.
Sanjay, Silvia and Sabrina seem to be making good investment decisions.
Ricardo is probably making a good decision too.
Step-by-step explanation:
I'm not sure that I can be of great help, because I have not read the Tutorial for this unit.
For me it is hard to tell about Ryan. I wonder what the Tutorial says. The fact that he has complete faith in a company may mean he has done a lot of research and understands the potential for the company to be profitable. But his faith in the company may be based on advertising or familiarity with a product. There may be other opportunities to invest in lesser known companies-- taking a risk may lead to opportunity. Maybe he should consult his stock broker or financial adviser.
