True or False? If False, explain why. (a) If the strong form of the efficient markets hypothesis is false, then we know for sure that the weak form of the efficient markets hypothesis is false. (b) Under the strong form of the efficient market hypothesis, investors can make excess profits if they know about private merger plans. (c) A company should consider all costs that have incurred when considering whether to continue a project. (d) Even though dividend policies are considered irrelevant, firms can use dividends to signal to investors they are high income firms