Which of the following SQL statements will display the name of each publisher that publishes a book classified in the computer category?
1) SELECT name FROM publishers WHERE category = 'computer'
2) SELECT name FROM publishers WHERE book_category = 'computer'
3) SELECT name FROM publishers JOIN books ON publishers.id = books.publisher_id WHERE books.category = 'computer'
4) SELECT name FROM publishers JOIN books ON publishers.id = books.publisher_id WHERE books.book_category = 'computer'