Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to know if you should write a book [title] Consider whether you possess uncommon knowledge about a subject or area of expertise. [step] Here is what former marketing executive and current u. s. congresswoman marsha blackburn had to say about the subject: " everyone has a transferable commodity-knowledge. Sharing your unique expertise and making introductions for someone creates a lasting legacy.

Ending1: Something that others simply take for granted, i believe. " [title] Consider how a single thing can make you feel. Ending2: " [title] Use other authors' work as a resource. [step] In general, publishing a book by someone else can be a great way to recognize works that are not yours. Ending3: " [title] Ask yourself if your experience in a subject area something that you are willing to share. [step] If the experience is painful, and telling about it might dredge up the uncomfortable past, then you will need to factor this into the decision. Ending4: You must be interested in selling what you know to others. This includes keeping your own journals and periodically posting your materials to publications of topics and interest that interest you.

Answer format: ending1/ending2/ending3/ending4