The Circulatory System delivers oxygen and nutrients in the blood to the surrounding cells to maintain Homeostasis. The blood in the Circulatory System is needed throughout the body so that other systems work properly. Like for instance the Nervous System has the brain, and the brain needs blood to function.
It would be 50% because having a son won't effect the probability of the next gender of the offspring. Unlike having to pick out two variables out of a bag, being pregnant is like having a trail but once you become pregnant again the trail restarts and does not use the previous data. You become a girl if you have 2 x chromosome and a boy by having one of x and one y. the odds are 50/50
I fell like its A but it could also be C try one hope this helps
The correct answer is (B)
Hope this helps! :)