I think the correct answer from the choices listed above is option B. Rescuing someone who is in danger is an example of chivalry. Chivalry is a term used to describe the qualities expected for a knight where one is the readiness to help who needs help.
primary division of the sea, which includes the whole mass of water subdivided into neritic and oceanic zones; also pertaining to the open sea (open water)
Predation and parasitism both involve the other organism getting captured. The difference is that predation is when the other organism gets eaten and parasitism is when the organism gets harmed. Why organisms fight?