Why is it important to look at the PE ratio? (The price to earnings ratio, meaning the amount investors are willing to pay for every dollar of earnings). a It tells you the earnings divided by the number of shares b It tells you whether or not a company is able to pay its bills using its cash c It tells you how much it costs to buy the stock d It tells you whether or not a stock is a good value to buy (in other words, if it's cheaper or more expensive for the same quality)