According to the UK Advertising Code Administered by the Advertising

According to the UK advertising code administered by the Advertising Standards Authority (ASA) , advertising should be:

A) legal, decent, honest, truthful
B) inoffensive, honest, clear
C) specific, measurable, achievable, relevant, timed
D) attention grabbing, interesting, desirous and actionable
E) legal, relevant, appropriate and not misleading