<h2><em>A.</em></h2><h2><em>I believe is the answer</em></h2><h2><em>Hope this helps, sorry if not tho</em></h2>
First of all, you dont have the answers.
But the answer is "Companies replaced hand-operated brakes with air brakes on trains" is the best answer because this stopped many of the fatalities that were caused by brake failures." which is I say on what you are using D
Political factions or parties began to form during the struggle over ratification of the federal Constitution of 1787. Friction between them increased as attention shifted from the creation of a new federal government to the question of how powerful that federal government would be.
The symbolic interaction approach clarifies that individuals demonstration towards circumstances in view of the way they see them. On the off chance that an occupation or family is imperative they will do as well as can be expected in those social examples.
<span>Symbolic interactionism is a sociological point of view which created around the center of the twentieth century and that keeps on being persuasive in a few ranges of the teaching. It is especially critical in miniaturized scale human science and social brain research.</span>