Answer:
A. Copyright
Step-by-step explanation:
Copyright is a law that gives the owner of a work: a book, movie, picture, song or website or in this case an algorithm the sole right to say how other people can use it. Copyright laws make it easier and encourage authors to get creative and earn through their work. With this, the author's work can only be duplicated if he gives permission. In this case, Matthew would have his lawyer draw up his copyright to protect his algorithm and may then distribute and give permission for it's duplication or distribution.