Multiple choice general knowledge science & technology

How do you search for all pages that have a link to a particular site, for example all sites that have a link to whitehouse.gov?

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The 'link:' operator finds all pages that contain links to the specified URL. 'show links' isn't a valid operator syntax. Option C is missing the colon, and 'references:' isn't a Google search operator.