Source 1 is primary and source two is secondary. Primary comes directly from an individual of that time period, secondary comes from a historian
The excerpt above expresses how the role of public education in the United States has drastically changed over the course of 100 years. During the middle of the 1800's, school was seen as a privilege to attend, not a guarantee. However, this idea changed significantly over the course of the next 100 years. By the time of the middle of the 1900's came around, attending school was seen as a normal thing to do.
This is why D is indeed correct.
Bartolomeu Dias was the first European to round the southern tip of Africa. He named it Cape of Storms, but King John later renamed it Cape of Good Hope.
