The correct answer is B. Spatial
Explanation:
Spatial organization, also referred to as descriptive writing, is a type of organization pattern that organizes the information in a text according to the space, this type of organization is mainly used to describe the way a place is or looks, in this way, the reader can have a mental image of a specific setting or scenario. Additionally, this type of organization can be recognized as the author or narrator focuses on providing details about the space in an organized way.
This type of organization can be seen in the excerpt from Mark Twain's Life on the Mississippi as the author describes a setting or scenario in which there is a river by organizing the information according to the location elements have in reference to the river which is shown in the use of words such as "broad expanse of the river", "in the middle distance", "in one place", "the surface", "spot", "high above" and "over the whole scenery that takes the reader from one section of the place to the other in an organized way and by providing details about each section of the scenario which is the purpose of spatial organization.