The answer is D. Environmental
Speak slowly, clearly, and loudly
Allow extra time for older patients
Be gentle
A poisonous snake of North America is the Rattlesnake... I'm not sure if it's one of only 2, but it is one.
Wow this is a very loaded question. These reactions range typically based on if A) the parent is okay with having a disabled child and of course B) how the doctor reacts and tells the parents to be. It is still a very common thing for doctors to advise to abort a child with disabilities and depending on how a parent takes this a range of emotions could appear like anger, sadness, shock, etc. and the wanting of a disabled child or not can result in the same emotions. I hope this helps!