i need help matching the definition with a term. i have only got 2 of them correct

Term Residual Claim A Definition An event by which a corporation issues new shares of stock to the public Choice B SEC The price at which a stock dealer is willing to buy share of stock c Outstanding Shares Stock that has preferential daims on any dividends a corporation pays D Preemptive Right m E IPO F Investment Bank G Best Efforts The investment bank will themselves purchase any shares that could not be issued during Aright that existing shareholders have to maintain their pre existing % ownership Shareholders only have rights to the assets of the firm after all creditors have been repaid Optional payments of prior earnings paid by corporations to their shareholders Regulates the stock markets and issuance of stock The investment bank does not guarantee the issuet wit be able to issue all share it des An intermediary that helps corporations and government secure long term funding The difference between the bid and ask price for a given share of stock H Firm Commitment 1 Bid price J Bid-ask Spread K Didends L Preferred Stock Shares that have been issued and not repurchased