describes unchecked political negotiations and deals that were often formed during the World War I era. (A) Secret diplomacy
(B) United Nations
(C) Armistice
(D) Central Powers

Secret diplomacy

Explanation:

Armistice is a period where soldiers between two opposing factions stop fighting to create a treaty. United Nations and Central Powers are groups of countries. Also secret diplomacy means it's unchecked political negotiations so I'd go with that one.

in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.

most drivers errors for every 20 decisions they make while driving.

explanation:

mark brainliest!