lauravramirez lauravramirez 27-05-2020 Biology contestada REALLY EASY!!! JUSUT CAN'T CHOOSE IF IT IS A OR B!!!! WILL GIVE BRAINLIEST!!!! AT LEAST TAKE A LOOK!!! ANSWER IF 100% SURE THO!!! 7. Which stages begin and end the human menstrual cycle? A) menstruation, ovulation B) puberty, ovulation