I believe the answer is B - The became rigid as pressure builds up
Answer: Augustus
Explanation: His reforms brought a more efficient bureaucracy and an end to the corruption of the days before the civil wars.
The Three-Light Traffic Light, Invented by Garrett Morgan in 1923. With only an elementary school education, black inventor (and son of a slave), Garrett Morgan came up with several significant inventions, including an improved sewing machine and the gas mask.