I believe the answer is : D ) All answers given are correct.
Answer:
is this a multiple choice question if so what are the options
Explanation:
The answer is W12-2. It is displayed as a diamond-shaped sign. It displays a black arrow pointing upward above the notation "12'-6", which is above a black arrow pointing downward. Low Clearance W12-2 signs shall be used to caution road users of clearances less than 12 inches directly above the statutory maximum vehicle height. In the situation of an arch or other building under which the clearance varies greatly, two or more signs should be used as required on the structure itself to give information as to the clearances over the entire roadway.
The change that brought the greatest impact in industrialization was the Factory system because it increased the population of people for employment and helped manufacture more goods