<span>The correct answer is A:a growth in the steel industry. In order to build the railroad network, large amounts of steel were needed for the rails on the tracks. Steel was also a key component of the locomotives themselves. Thus, the expansion of this system required more steel to be produced and a growth of this industry.</span>
C.
he says that they were “of great service to us” and that they communicated with each other to teach and help one another
It is believed that candy dates back to the ancient Egyptians at around 2000BC. The first ''candies'' were made from honey mixed with fruit or nuts. Sugar candy was invented by the Indians about 250AD.