2. The principle of labour relations is __ A) presumption of innocence B) freedom of labour C) presumption of guilt D) freedom of a civil contract

The correct answer is B) freedom of labour.The principle of labour relations is based on the concept of freedom of labour, which means that workers have the right to freely choose their employer and work under conditions that they find acceptable. This principle recognizes the autonomy of workers and their ability to negotiate with employers on matters such as wages, working hours, and working conditions.Option A) presumption of innocence is not directly related to labour relations, as it is a legal principle that applies to criminal proceedings.Option C) presumption of guilt is also not directly related to labour relations, as it is a legal principle that assumes a person is guilty until proven innocent.Option D) freedom of a civil contract is a related concept, as labour relations often involve the negotiation of contracts between workers and employers. However, the specific principle of labour relations is the freedom of labour, which emphasizes the autonomy and rights of workers in the workplace.