Which of the Following Is True About the P/E Ratio

Which of the following is true about the P/E ratio of a firm?

A) The higher the P/E ratio, the less investors are willing to pay for each dollar earned by the firm.
B) If a firm's P/E ratio is 8, then, it would take 8 years for an investor to double his or her initial investment.
C) The appropriate value of P/E ratio is multiplied with EPS to estimate the stock price.
D) If a company's P/E ratio is too high relative to that of similar firms, its earnings have not been fully captured in the existing stock value.
E) If the firm's P/E ratio is too low relative to that of similar firms, it means that the market has overvalued its current earnings.