Final answer:
The correct statement regarding women's rights is that women have made substantial advancements in political positions. The Equal Rights Amendment (ERA) was not ratified by the necessary 38 states by 1982, and the women's rights movement began well before WW1.
Step-by-step explanation:
The statement about women's rights that is correct is: 3) Women have made substantial gains in the areas of appointive and elective offices. The other statements are either partially correct with inaccuracies or outright incorrect. For instance, the Equal Rights Amendment (ERA) was indeed introduced in Congress since 1923, and although it passed in 1972, it failed to be ratified by the necessary 38 states by the 1982 deadline. The women's rights movement began long before WW1, and while it's true that it achieved voting rights for women shortly thereafter, the movement started at the Seneca Falls Convention in 1848. Additionally, whether women vote more for Republican or Democratic candidates can vary depending on the election and numerous other factors, so statement 4 is not universally correct.