Final answer:
The Structure and Method Book 1 McDougal Littell PDF can be found in online retailers such as OpenStax.org. They offer free web view and PDF versions of the textbook.
Step-by-step explanation:
The Structure and Method Book 1 McDougal Littell PDF can be found in C) Online retailers. One of the websites where you can access this textbook for free is OpenStax.org. They offer both web view and PDF versions of the textbook. Additionally, you can also find a low-cost print version of the book.