The author begins the selection with this excerpt mainly to
A provide readers with a set of instructions to follow.
B explain how readers can become photographers.
C help readers create a picture in their minds that relates to the topic.
D teach readers about the history of domesticated horses.
The correct answer is C: help readers create a picture in their minds that relates to the topic.
This choice suggests that the author uses descriptive language or imagery at the start to engage the readers and allow them to visualize the subject matter, which often helps to connect them with the main theme of the writing. If you need further clarification, feel free to ask!