As far as rights go, all of them are true, but if you can give me a second to read her "Ain't I a Woman?" speech, or if you could link it, I'll be glad to give you a more in-depth answer :)
Edit: I have just re-read the speech, and the first three answers are correct. I hope this helps!
Second Edit: Apologies, everyone, I misread the question. It says "valid" which indicates that we are basing our answer off of scientific facts and human morale. Therefore, the correct answer is the third option: "Regardless of intellect, all humans should have equal rights."