11/ The firm's capital structure refers to its:

• short-term vs. long-term debt.

• debt vs. share capital

• current liabilities vs. current asset.

• long-term liabilities vs. capital assets.

12/ The cost of a security is a function of:

• the security's volatility.

• the security's cost relative to the cost of retained earnings.

• the security's trading volume.

• how the security is valued in the marketplace.