D. is the best answer i am pretty sure it is D. bc it is to comapre
The correct answer is A. Technological advances such as s<em>team power, air brakes, automatica lubricators and steel tracks</em> have affected the railroads very positively, since it has made it possible that the rail network could become a safer, more efficient and more reliable means of transportation for goods.
It instituted the headright system, giving fifty acres of land to each colonist who paid for his own or another's passage.
The British army wasn’t strong enough to challenge German military which had grown tremendously over Hitler’s time; British leaders believed that hitler provided defense against soviet communism.
The house of wisdom<span> had a crucial role to play in linking the Islamic world fronts in east and west and in introducing the heritage in its perfect form to all Muslims in order to preserve it from loss and deterioration.</span>
