Margaret thatcher played an important role in britain''s history primarily because she
a. acted as secretary general for the united nations.
b. was the first queen of england in the modern era.
c. provided crucial leadership for britain during world war ii.
d. was britain''s first woman prime minister.

D. was Britain's first woman prime minister.

Margaret Thatcher was more than just the first female prime minister of Britain, she is the only woman to have ever been Britain's prime minister and was the longest serving British Prime Minister of the 20th century.

Margaret Thatcher played an important role in  Britain’s history primarily because she was Britain’s first woman prime minister.  

She led the country from 1979 until 1990. In her tem, she decreased the influence of trade unions, making certain industries private and scaling back public benefits and has changed the terms of political debate.  She is also known as the “Iron Lady” as she fought against Soviet communism  to continue having control of the Falkland Islands.