Pepsi Cola Ran an Advertising Campaign "Drink Pepsi, Get Stuff

Pepsi Cola ran an advertising campaign "Drink Pepsi, Get Stuff." If consumers collected enough caps from Pepsi products, they could redeem them for merchandise.On the print ad was the picture of a Harrier jet, a military aircraft that costs over a million dollars.Bob put together a group of investors, collected about $350,000 worth of Pepsi caps, and demanded his jet.What will be the critical issue as to whether there is an enforceable contract?

A) Did Bob really think the ad was an offer?
B) Did Pepsi really mean for the ad to be an offer?
C) Would a reasonable person given all the circumstances have assumed the ad was an offer?
D) All of the above are correct.