What initiates the life of an act of Parliament?

The life of an act of Parliament can indeed be initiated by any of the types of bills mentioned: public bills, private bills, or hybrid bills. Each type serves different purposes but all follow a legislative process that can lead to new laws.

A public bill is introduced to apply to the general population and typically addresses matters of public policy. It is the most common type of bill, often introduced by the government but also can be proposed by individual Members of Parliament.

A private bill, on the other hand, affects only a specific group of people or a locality and is usually promoted by organizations or local authorities rather than the government.

A hybrid bill contains elements of both public and private bills, affecting the general population but also imposing specific obligations or privileges on individuals or organizations, such as infrastructure projects.

Since all these types of bills can initiate legislative processes in Parliament, the correct answer highlights the inclusiveness of various bill categories in the law-making process. This encompassing perspective is essential for understanding how diverse legislative initiatives can contribute to the creation of laws.