You constructed a protective collar strategy on Signadron Corporation. You own one share of Signadron. To complete your collar, you bought one put option with the strike price of $70 and sold one call option with the strike price of $85. What is the highest payoff at expiration that your strategy can achieve and over which range of Signadron share prices?

Options:

	$85 when the price of Signadron is higher than $85
	The maximum payoff is potentially unlimited if the price of Signadron is higher than $85
	It is not possible to answer this question based on the information provided
	$85 if the price of the Signadron stock is between $70 and $85
	$15 dollars when the price of the Signadron stock exceeds $70