(The four basic principles of finance) Which basic principle of finance correctly describes the following statement: "Investors respond to new information by buying and selling their investments. The speed with which investors act and the way that prices respond to the information determine the efficiency of the market"? (Select the best choice below.) OA. Principle 1: Money has a time value. OB. Principle 2: There is a risk-return tradeoff. OC. Principle 3: Cash flows are the source of value. OD. Principle 4: Market prices reflect information