Study each of the following case. Answer the questions that follow with Yes or No.

Legin, a professional writer, discovered that substantial amounts of a copyrighted article he had written 10 years earlier were included in a commercially published textbook written by Gant. When Legin confronted the publisher of the book, the publishing company denied knowledge of the use of Legin’s copyrighted article and also pointed out that the text was intended for educational use.
a. Does Legin have recourse to a legal remedy?
b. Does the educational use of the textbook have any bearing on the case?
c. Does the fact that the article had been written 10 years earlier affect Legin’s copyright protection?