An estate which the tenant holds his own right, without being joined in interest with any other person is known as Estate in Severalty (Option C).
Estate in Severalty, also known as a Sole Ownership, refers to a property that is owned by a single person, who holds the property in their own right, without being joined in interest with any other person. This means that the owner has the exclusive right to use, occupy, and dispose of the property, and is responsible for all costs and liabilities associated with the property.
In contrast, Tenancy in Common (Option B) refers to a type of co-ownership where two or more individuals own a property together, each having an undivided interest in the property. In this case, the tenants have a right to possess the property but do not have the right to exclude other co-tenants.
Tenancy by the Entirety (Option A) is a type of co-tenancy that can only exist between husband and wife, in which the couple holds the property together and neither party can sell or dispose of the property without the other's consent.
Joint Tenancy (Option D) is a type of co-tenancy where two or more individuals own a property together, but each tenant holds an equal right to the property and has an equal right to possession and use of the property. In this case, upon the death of one joint tenant, the deceased's interest in the property automatically passes to the surviving joint tenant(s).
In conclusion, Estate in Severalty is a type of property ownership in which a single person holds the property in their own right, without being joined in interest with any other person. The tenant has the exclusive right to use, occupy, and dispose of the property, and is responsible for all costs and liabilities associated with the property.