Stock Price. What determines stock price? How do investors use this information to make buy or sell decisions? The price of a stock is determined by: (Select the best answer below.) O A. the interaction of supply and demand for that stock. B. the interaction of supply and demand for the market in general. C. the interaction of supply and investors for that stock. D. the interaction of investors and financial institutions for that stock. How do investors use this information to make buy or sell decisions? (Select the best answer below.) A. Investors analyze all relevant information about a firm and its prospects and then decide how this information will impact demand and supply and therefore price. B. Investors analyze the stock market as a whole and then decide how this information will impact demand and supply and therefore price of a particular stock. C. Investors analyze all relevant information about a firm and its geographical location and then decide how this information will impact demand and supply and therefore price. D. Investors analyze all relevant information about a firm and its prospects and then decide how this information will impact investors and financial institutions and therefore price