An estate can be acquired by which of the following methods?

Acquisition of an estate can indeed occur through various methods, making the option that encompasses all of them as the most comprehensive and accurate.

When someone acquires an estate by purchase, they are engaging in a financial transaction where the property is bought from a seller. This is a common and straightforward method of estate acquisition, involving legal contracts and transfer of ownership.

Inheritance or gift is another method through which an estate can be acquired. In this case, property is transferred from one individual to another as part of a will or as a voluntary act without compensation. This method reflects legal rights and the intentions of the original estate owner regarding the future of their property.

The power of the state refers to the government's ability to seize or acquire property, often under laws such as eminent domain or for public use. This method illustrates how public needs can interfere with private ownership, and it also acts as a means for the state to manage land for societal benefits.

Each of these methods—purchase, inheritance or gift, and state power—highlights different legal and economic principles governing property rights and ownership transfer. Since all these methods are valid ways through which estates can be acquired, selecting the option that includes all these methods provides a complete and thorough understanding of estate acquisition.