Answer:
this demonstrate a difference in gender
Let’s find out together buddy we can get thru this hard stuff
The sternal angle is an important clinical landmark for identifying many other anatomical points: It marks the point at which the costal cartilages of the second rib articulate with the sternum. This is particularly useful when counting ribs to identify landmarks as rib one is often impalpable.
I would say upper class. Both parents seem to have high paying jobs and in my mind wouldn't struggle to provide for their children's educational needs. Where as if they were upper-middle class they might struggle to pay for private schools and college.