A rare bid to break up Alphabet’s Google is one of the options being considered by the US Department of Justice (DOJ) after a landmark court ruling found that the company monopolized the online search market, according to people with knowledge of the deliberations. If the DOJ pushes ahead with a break-up plan, the most likely units for divestment are the Android operating system and Google’s web browser Chrome and AdWords, the platform the company uses to sell text advertising.