Which of the following strategies can underwriters use if the firm thinks they could use additional money but is afraid that issuing too many shares will cause a price drop in the shares? They can require an overallotment clause in the underwriting agreement of the IPO. They can require a lockup clause in the underwriting agreement of the IPO. They can agree to sell the shares in the IPO at a lower price than suggested by their bookbuilding analysis. They can agree to make more shares of future IPOs available to investors that hold onto the initial shares for a relatively long period of time.