In Nystrom V

In Nystrom v.Trex Company,where Nystrom sued Trex Company for copyright infringement on his patented flooring boards,the appeals court held that:

A) since Nystrom did not disclaim boards made from materials other than logs,boards made from all materials are covered by his patent
B) since Nystrom disclaimed boards made from materials other than logs,boards made from all materials are covered by his patent
C) since Nystrom disclaimed boards made from materials other than logs,boards made from all materials are not covered by his patent
D) since Trex disclaimed boards made from materials other than logs,boards made from all materials are not covered by the patent
E) none of the other choices are correct