The current stock price of alcoa is $70, and the stock does not pay dividends. the instantaneous risk-free rate of return is 6%. the instantaneous standard deviation of alcoa's stock is 40%. you want to purchase a call option on this stock with an exercise price of $75 and an expiration date 30 days from now. based on the black-scholes opm, the call option's delta will be

a. 62
b. 31
c. 28
d. 70

1. which one of the following would be an example of a supply-side market failure? a. a gas station is slowly leaking diesel fuel from its underground tanks, and after the leak is discovered, the business immediately cleans up the pollution at its own expense. b. a gas station is slowly leaking diesel fuel from its underground tanks, but the state uses taxpayer money to clean up the pollution rather than requiring the business to pay. c. your business wants to attract repeat customers by putting on a customer-appreciation picnic at a public park, but you decide not to because you couldn't prevent noncustomers from consuming the food and entertainment you provided. d. everyone rushes to the local retail outlet at midnight on the day of the release of a new video game console, and the store runs out before everyone is able to buy one.