Final answer:
The apprentice would understand the main topics of the lesson by studying the Table of Contents, as it outlines the chapters and main areas of study. The option (D) is correct.
Step-by-step explanation:
When an apprentice specifically studies the Table of Contents, he will understand the main topics of the lesson. The Table of Contents provides a structured overview of the chapters, sections, and material covered in a textbook. This allows students to grasp the scope and sequence of the course content, thereby aiding in their comprehension and study of the subject matter.
The appendices might include additional information such as a Glossary, Bibliography, and other resources that are supplementary to the main body of the text. However, for the main topics of the lesson, the Table of Contents is the best place to start. Therefore, option (D) is correct.