Answer:
i think u forgot to add the picture we cant see it
Explanation:
After the war ended and during Reconstruction, the northern industrial economy had made important progress, particularly in manufacturing and railroad-building
The Indus Valley civilizations were seen as special because they were a very advanced society.
Indus Valley civilizations showed signs of advanced water systems, brick homes, sewage/irrigation, and thriving trade routes. Children's toys, as opposed to war weapons, were found in the area alluding to times of peace and prosperity.
I beileve the answer is d i hope this helps
B. Poor maintenance
probably<span> to </span>late
