Answer:
The study is called ecology
Explanation:
Mark as brainliest if I'm correct
I think its answer choice A because it would better to talk to their parents first and not take matters into your own hands.
If the egg is fertilized by a man's sperm, the resulting embryo would travel down the fallopian tube and implant in the uterus. This happens around the 20th day of the menstrual cycle. ... Around day 26 of your cycle, the uterus will begin the process to shed its lining causing menstruation to begin
hope this helps
Not sure about the first two but I think number three is B. sorry if I'm wrong
