Chapter 10 Case Problem - Nature of Contracts - 10-3 page 222 WBL 10e  

Atencio is confined to his bed. He calls a friend who lives across the street and offers to sell her his watch next week for $100. If his friend wishes to accept, she is to put a red piece of paper in her front window. The next morning, she places a red piece of paper in her front window. Has a bilateral or unilateral contract been formed? Explain, and quote the rules learned in your textbook.