I believe it's A because as the Greeks advanced in time their overall structural design became more elaborate.
When Europeans arrived in America in the 1600s, the frontiers began moving west. As they continued spreading their land occupation, American Indians were moved west. In 1889, the government transferred white colonists the Indian land, breaking the promise, as these lands had been promised to Indians. The Indians tried to take over those lands to no avail. In 1890 the Bureau of the Census stated there were no frontiers within the country.
It was "India" that successfully maintained neutrality when it came to dealing with the two superpowers following World War II and carrying forward into the
<span>'60s, since they had gained a great deal of autonomy after the relative fall of the British Empire. </span>
In the southern United States, slavery was used to help farmers with their fields. The farmers depended on the slaves for their own livelihood. In the northern United States, there was no need for slaves since there was not many farms and no cotton that was grown. The northern people were business owners and the citizens were skilled workers.
The Los Angeles riots erupted on 29 April 1992 after four white police officers were acquitted over the videotaped beating of black motorist Rodney King. Anger led to days of looting and burning, 54 deaths and $1bn (£610m) of damage to the city. A state of emergency was declared in South Central Los Angeles.