What “Iron Lady” was elected head of the U.K. Conservative Party?

Here is the question :

WHAT “IRON LADY” WAS ELECTED HEAD OF THE U.K. CONSERVATIVE PARTY?

Here is the option for the question :

Indira Gandhi
Golda Meir
Eleanor Roosevelt
Margaret Thatcher

The Answer:

And, the answer for the the question is :

MARGARET THATCHER

Explanation:

[STC0020067]. Margaret Thatcher made history in 1975 with an unexpected victory against Edward Heath, becoming the leader of the country’s Conservative Party, before becoming the United Kingdom’s first female prime minister from 1979 to 1990. The ‘Iron Lady,’ as she was dubbed, held the position for four years before succeeding James Callaghan as Prime Minister.