Which question will this article most likely prompt you to ask yourself?
a.
which company invented the electric elevator?
b.
what other inventions have made city-living easier?
c.
who invented the escalator system?
d.
how fast did early elevators travel?

the illustration   that would give a reader a clear understanding of the text is a picture of men constructing the frame of a building.the frame is made of iron bars. the text describes the job of blacksmiths'. these were very organised and they had different names: "the driver" and "the heater". the text describes the way in which these men worked ; they worked iron pieces as if they were playing a sport. in fact, the text wants to show the men's skills. the text also puts some emphasis on the use of '' rivets'' in construction. this kind of nails were not always used in the construction of manhattan.

some examples:

"and with an underhand toss he hurled the smoking rivet straight at the catcher, who caught it in mid-air in his catching can." men's skills

"when the driver was ready for a new " the emphasis on the rivet ( special nail used in construction).

" it against a beam to remove any cinders, and jammed it into the waiting hole. " the emphasis on the rivet.

i think it may be b, i'm not exactly too sure on this. but b seems to make more sense.

are you asking for advice? if so, i think its great! i like how you gave specific details. i think you will get a good grade on it!