Significant changes enacted at the national levels included the imposition of an income tax with the Sixteenth Amendment, direct election of Senators with the Seventeenth Amendment, Prohibition with the Eighteenth Amendment, election reforms to stop corruption and fraud, and women's suffrage through the Nineteenth century
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Answer
B. They left carvings behind.
Explanation
What remains of their architecture and art, including stone carvings and inscriptions on their buildings and monuments.
It was in Roman territory which was filled with cultural diffusion. Rome tolerated all religions as long as people payed taxes to the emperor to keep the peace. The emperor allowed other culture and religion so there wouldn't be an revolts against their own people. Later on a bad emperor Nero blamed Christians for a fire which changed things which led to the fall of Rome. Hope this helped!
It was popular at the time because it showed Violence, Provactive Sexuality, and tested strict boundaries for the Cinemas at the year of 1960, it also gave the most iconic shower murder scene as well that gave critics and audience a stir.
One current theory is that trade with Mesopotamia (which was very important to the Indus Valley civilization) slowed or stopped, due to Mesopotamia's own troubles at the time.