(a) Relates to the dot point 'issues of compliance and non-compliance' in the Themes and challenges. If you have either the Cambridge or Excel books, they will have a summary on the information to cover on this dot point.
e.g. A wide range of federal and state legislation operates to ensure that buyers and sellers comply with the law. Sanctions are imposed on parties who fail to do so.
Source: Cambridge HSC Legal Studies
(b) Provide reasons why consumers and manufacturers/supplier are governed by different legal protections.
e.g. They are at different positions on the supply chain, and therefore need different regulations.
Hope it helps.