Answer:
A.
Explanation:
Conceited means that someone is very proud or vain. The first one says that he communicates intimately with himself and when he agreed on something it was done.
No. Science cannot go too far. Science is the method of pursuing knowledge, and the pursuit of knowledge. Knowledge in itself is not dangerous. It only becomes dangerous when people use it for immoral purposes, and THAT has nothing to do with the science that produced the knowledge.
The roads are super unsafe and slippery during the winter, but during the summer the roads are safer just a lot more busy.
