How does the introduction in paragraph 1 contribute to the structure of the text as a whole?
O by describing the experience of attending school on a train
O by chronologically detailing the evolution of schools on trains
by providing an answer to the problem associated with attending school on a
train
by thoroughly explaining how students traveled to and from schools on trains

answer; ///(positive correlation);

in 342 bc j._c. egypt fell into the hands of the persians, under the reign of nectanebo ii

greek city-states unite in a revolt against the persian empire at the beginning of the fifth century bc. j.-c  

from the year 660 or 659 bc ad, cyrus preached the revolt against the medes to deliver the persians.

the atm that sounds like it should be the answer

what are the options?