Final answer:
The country that refers to a person who controls politics behind the scenes as a "prime minister in black" is South Korea.
Step-by-step explanation:
The country that refers to a person who controls politics behind the scenes as a "prime minister in black" is South Korea. In South Korea, the person who controls politics behind the scenes is known as the "prime minister in black". This term refers to an influential, non-elected figure who wields significant power and influence in the government.
An example of a "prime minister in black" in South Korea is Choi Soon-sil. She was a close friend of former President Park Geun-hye and was heavily involved in decision-making and policy implementation, even though she held no official government position.