Hey There, I've got to make one research project on -- Nelson Mandela and the Anti - Apartheid Movement, Can anybody share any resource materials on these topics apart from Wikipedia, and Library? What can help?

Which statement describing the stock market system is true? a. when stocks lose value it means the company is doing well. b. the value of stock can never fall . c. the value of stock can never rise d. companies sell stock to their businesses grow and become "public"