Which of the following titles corresponds to Section B in a lesson structure?

In the context of a lesson structure, the title that best corresponds to Section B is "Elements." This section typically focuses on the essential components or details that support the main content of the lesson. It includes specific instructional materials, activities, and strategies that will be used to convey the content effectively. Understanding the elements of a lesson allows instructors to ensure that all necessary components are integrated to meet the learning objectives.

The other titles relate to different sections or aspects of a lesson structure. For instance, "Content" pertains to the main subject matter being taught, while "Course of Training" often refers to the broader educational framework within which the lesson fits. "Objective," meanwhile, outlines the desired learning outcomes for students. Each of these plays a vital role in lesson planning, but "Elements" specifically identifies the building blocks of the instructional process in this context.