please help
 You are writing a compare and contrast essay; your thesis is provided below. Reading printed books is better for educational purposes than reading electronic books. 
Which of the following points of comparison would most effectively support your thesis? 
1: Environmental benefits, environmental drawbacks, metal e-readers vs. paper books
2: Ease of accessing books, ease of purchasing books, ease of reading
3: Cost of books, portability of books, storage of books
 4: Ability to focus on content, ability to understand material, ability to recall information