The answer is C. Based on the scientists’ recommendations, the new safety requirements were enacted so that the number of accidents diminished
I believe the correct answer is naive.
The author is trying to say that he was ignorant, and that he couldn't understand properly these new revelations. He was either too young or too stupid to understand such a thing, but he believes he will as he grows older.
Explanation:
a character who undergoes scientific internal change throughout the course of a story the development of a dynamic characters often step total and unstated and is not due to a change of a character circumstances
