Which plane separates the body into upper and lower sections?

The transverse plane is the correct choice because it divides the body into upper and lower sections, also known as superior and inferior parts. This plane runs horizontally across the body, allowing for a clear distinction between the sections above and below it. This anatomical concept is crucial for understanding how the body is organized, especially in fields such as anatomy, physical therapy, and massage therapy, where knowing the orientation and positioning of different body parts is essential for effective treatment and assessment.

The frontal plane, in contrast, divides the body into anterior (front) and posterior (back) sections, while the sagittal plane separates it into left and right sections. The term "vertical" does not refer to a specific anatomical plane recognized in medical literature, making it less relevant in this context.