Answer: C. Netiquette.
Explanation: Netiquette simply means online etiquette. Etiquette means standard behavioral principle or conduct required of an individual who is polite, responsible and law abiding. Netiquette could be explained as the standard or acceptable code of conduct an internet user is expected to follow. Such conduct could include ; avoiding the use of all caps( capital letter while typing), careful consideration of acts which could violate other user's privacy and lack of courtesy.