Answer:
Flow or discharge, option B.
Step-by-step explanation:
The medical term 'diarrhea' can be broken down into two components, its prefix 'dia-' and its suffix '-rrhea.'
The suffix -rrhea, comes from both Latin and Greek meaning "flow or stream," and when used in the composition of a medical term, it communicates the flow or discharge of a substance or from an origin. Not only can this be seen in the term diarrhea but also rhinorrhea, otorrhea, steatorrhea, etc. Therefore, option B is the closest definition.