A corporation wanted to guarantee its long$-$term bond borrowing costs over the next year. The firm thus entered into a futures hedge using one T$-$bond futures contract. The firm entered the futures contract at the open price of $10913$ using the minimum amount of margin required. At the end of the day the contract settled at $10925.$

a$)$ Should the firm use a short hedge or a long hedge?

b$)$ If the position is closed at the end of the day what is the firm$$s holding period return on the futures contract?

c$)$ At what price would the corporate investor receive a margin call? Put your answer in $32$nds and round