found this options book on google if anyones interested in reading it http://books.google.com/books?id=kA-LlIx9X94C&pg=PA175&lpg=PA175&dq=buywrite+scan+option&source=bl&ots=j6koELOSqO&sig=pYyHxAcf2yV-_4o6T33CtVn41Ng&hl=en&sa=X&ei=9s8BVPGMBK35igKi0oCwBA&ved=0CEcQ6AEwAw#v=onepage&q=buywrite%20scan%20option&f=false