D. A territory that is ruled by a lord, Because the Emperor could call on those lord's to supply his knights and warriors in battle.
Social Security, Medicaid, and Medicare
Mongolia struggles to maintain independence as a buffer state between China and Russia. The correct option among all the options that are given in the question is the fourth option or option "d". Mongolia is a country that is economically weak but has huge amount of em[pty land and a very small population.
A.
Money that does not need to be paid back to the providing government
