Between 6-8 months is generally when most toddlers sit up on their own

1) ovulation, fertilization, and implantation
2)development of an embryo and then a fetus
3) contractions of the uterus and dilation of the cervix
4)expulsion of the placenta and cutting the umbilical cord
5) birth of the baby.

Very slowly. if training with weights, about 2 or 3 seconds to life and slowly back down.
The correct answer is D, because surrounding yourself with individuals whose company that you enjoy makes you satisfied and scientists have tested this out and they discovered people that are stressed or angry and hang out with someone like their family and they like to hang out with them then their stress or anger will easily go away.
Hope this helped.