Option A, B, D are only applicable for steroid hormones ( hydrophobic)
So the answer is C
Hitherei thinkthe answeris1
Correct answer - Tetrahedral, planar or flat.
Why? - When carbon forms single bonds with other atoms, the shape is tetrahedral. When two carbon atoms form a double bond, the shape is planar, or flat. Single bonds, like those found in ethane, are able to rotate.
The purpose of a quick body response is from your brain. Your brain has a nervous system that can tell you to do things that you should.
In this case, Pulling your hand away from a hot stove could be dangerous, so you nervous system quickly reacts to take your hand away from the stove.
