Which of the Following Indicates the Need to Place a Hedge

Which of the following indicates the need to place a hedge?

A) The price movement in the underlying cash asset cannot be forecasted perfectly.
B) The prices of the assets or liabilities are imperfectly correlated over time with the prices on the futures.
C) Basis risk prevents the minimum risk of the portfolio from reaching zero.
D) Treasury has been issuing more shorter-dated bonds to finance U.S.budget deficits.
E) Spot bonds and futures on bonds are traded in different markets.