Jessica Litman, a law professor at Michigan's Wayne State University, has specialized in copyright law and Internet law for more than 20 years.

Choose your answer: based on the paragraph above can we conclude that " Jessica Litman has specialized in copyright law and Internet law for less than 18 years."?

Options: (i) Yes; (ii) It's impossible to say; (iii) No;
I think the answer is
(iii)