Which expression is equivalent to if (!(grade == sentinelValue))?

Which of the following can be used as a delimiter?

A) A tab or a comma only B) A paragraph mark, a tab, a carriage return or a comma only C) A paragraph mark, a tab, a comma, or another character D) A paragraph mark, a tab, or a comma only

Which of the following is an example of propaganda?

A) Hacking into computer systems B) Using a packet sniffer to capture usernames and passwords C) Spreading misinformation to advance one’s cause D) Creating viruses to steal banking information