It’s D, changing effecting to affecting makes it grammatically correct.
The United States is one of five permanent members of the United Nations b) security council. The other member states are: Russia, France, China and the United Kingdom. The Security Council is one of the six principal organs of the United Nations and is charged with the maintenance of international peace and security, as well as accepting new members into the United Nations and approving any changes to the United Nations charter.
President Jefferson authorized Robert Livingston and James Monroe to purchase all the Louisiana Territory This agreement was known as the Louisiana Purchase. The purchase itself included land from fifteen present day states including portions of Arkansas, Missouri, Iowa, Oklahoma, Kansas and Nebraska, South Dakota, Montana, Wyoming, Colorado.