Martha has 5,000 bushels of corn purchased at a price of $3.50 per bushel. She wants to hedge with put options on the march corn futures at a strike price of 3.50 per bushel with a premium of $5.00 per bushel and a delta of .5. Set up Marthas t-account. One week later , martha observes that the delta on the $3.50 strike price is now at .25. Adjust Marthas hedge and explain