Answer/Explanation
African traditional medicine is a form of holistic health care system organized into three levels of specialty, namely divination, spiritualism, and herbalism. The traditional healer provides health care services based on culture, religious background, knowledge, attitudes, and beliefs that are prevalent in his community.
"B. By the light of the moon, I tripped over a <span>rock" would be the only sentence with a dangling modifier, since in this case it is unclear what exactly is being modified, since the moon light and the tripping incident could be two, separate events in time. </span>
It helps by stating the main idea developed in the paragraph.