Pick the most correct statement: a. In implementing the relative valuation approach, the forward price multiples is preferred to the trailing price multiples because of the forward-looking nature of the valuation task. O b. Using time-varying discount rate in discounted cash flow methods can be approriate when the firm has a plan to penetrate new product or geographical markets. Oc. All of the statements are correct. Od. Although we often use a single discount rate in the discounted cash flow methods, it is plausible that the discount rate is time-varying