"<span>a. Slavery began in ancient times and has existed around the world in different forms" is the only true option from the list, since it was around in biblical times but in a very different form that is thought of now.</span>
Primary sources provide direct account information, Secondary sources describe, interpret, analyze, summarize and evaluate the views offered by primary sources. Good examples of secondary sources include opinions offered in newspaper articles, movie or book reviews and biographies.
Middle kingdom. I haven't heard about that one
British and French disputes over the borders in the Ohio River Valley was one of the major causes of the opening of the American front in during the Seven Years War. This conflict would later come to be known as the French and Indian War.
