The answer is:
3). Nobody ever helps me into carriages, or over mud-puddles, or gives me any best place!
4). I have ploughed and planted, and gathered into barns, and no man could head me! And ain't I a woman?
5). I have borne thirteen children, and seen most all sold off to slavery, and when I cried out with my mother's grief, none but Jesus heard me!
Hardships refers to severe suffering or privations. In the excerpt from "Ain’t I a Woman?," the speaker Sojourner Truth makes reference to the personal torment she has been subjected to. For example, she mentions the heavy work she carried out without any help when she was a slave, as well as her sorrow to see her own children sold to slavery.