To hedge, a user of an energy resource wants price protection from rising prices. The user decides to buy a call option to protect against rising prices.But they want a lower cost of hedging and decide to construct a collar strategy.What other action should they take along with the purchase of the call option?

a)Buy a call option

b)Sell a call option

c)Buy a put option

d)Sell a put option

e)None of the above