In what year was the "@" chosen for its use in e-mail addresses?
A
Correct answer
Explanation
Ray Tomlinson implemented the first email system on ARPANET in 1971 and chose the "@" symbol in 1972 to separate the user name from the host computer. He picked it because it was a rarely used character on keyboards and made logical sense (username @ host, read as "user at host"). The claimed answer (A - 1972) is correct. 1963 is too early (email didn't exist then), 1978 and 1982 are too late.