Maximum profit if exercised is $1,600, computed as follows:
a. Net Debit to open position: 90 cents ($1.00 price of stock less 10 cent call premium received).
b. Selling Price if exercised: $2.50, or $2,500.
c. Profit: $2.50 less .90 = $1.60 x 1,000 shares = $1,600.
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