Which of the following symbols is used in email addresses to separate the username from the ISP?

The @ symbol in an email address separates the user name from the domain or ISP part.

The dollar sign denotes currency or variables in code, not a divider in email addresses.

The percent sign marks percentages or, in old routing, other uses, but is not the standard separator here.

The asterisk is a wildcard or multiplication symbol, not the email address divider.

In an address like name@example.com, the part after @ names the mail host.

Ray Tomlinson chose the @ symbol for email addressing in 1971.