It would be D. The Pelvic Cavity
Because the thoracic cavity is your chest area, the spinal cavity has to do with your spinal cord and the cranial has to do with your brain.
Im pretty sure it’s 5 years
It's the outer membrane / cell membrane. Cells transport into and out of the Membrane
My guess would be if you know someone's personal and cultural preferences it can determine their general health and food and lifestyle decisions
I think it's A, but I don't really know this stuff that well... Hope it helps! :)