The correct answer is "35".
The Equal Rights Amendment is a proposed amendment to the United States Constitution that guarantees equal rights for all American Citizens, regardless of sex. The Amendment aims to end legal distinctions between men and women regarding properties, employment, marriage, among others.
The Bill was originally submitted to Congress for the first time in 1921. However, it was not until 1972 that it was passed by both the House of Representatives and The Senate. It would later enter a state ratification period, whose deadline was set on March 22, 1979. 35 State legislatures had ratified the Amendment by the deadline and it was later passed by Congress and signed by the President.