Statement 1: American women started campaigning for suffrage during the 1870s.
Statement 2: Women were against corsets and spoke out about their adverse effects on health during the 1870s.

The correct option is C Both statements are true.
By the 1830s, women in England began agitating for democratic rights. As the suffrage movement intensified in the succeeding years, women began campaigning for dress reform. In the 1870s, the National Woman Suffrage Association headed by Mrs Stanton, and the American Woman Suffrage Association dominated by Lucy Stone campaigned for dress reform. So, by the end of the 19th century, both in Europe and America, demand for rational dress reform touched its peak.