You own a share of Costco stock. You are worried that its price will fall and would like to insure yourself against this possibility. How can you purchase insurance against this possibility? (Choose the best answer below.) O A. To protect against a fall in the price of Costco stock, you can sell a put with Costco as the underlying asset. B. To protect against a fall in the price of Costco stock, you can buy a put with Costco as the underlying asset. C. To protect against a fall in the price of Costco stock, you can buy a call with Costco as the underlying asset. D. To protect against a fall in the price of Costco stock, you can sell a call with Costco as the underlying asset