Answer:
they help explain what happened
they help explain why things happened
they help show how Arnetta was like
they help develop what Arnetta was like
Explanation:
a b c d
Because it depends on the laws already at place
Only 50 years after the defeat of the British at Yorktown, most Americans had already forgotten the extensive role black people had played on both sides during the War for Independence. At the 1876 Centennial Celebration of the Revolution in Philadelphia, not a single speaker acknowledged the contributions of African Americans in establishing the nation. Yet by 1783, thousands of black Americans had become involved in the war. Many were active participants, some won their freedom and others were victims, but throughout the struggle blacks refused to be mere bystanders and gave their loyalty to the side that seemed to offer the best prospect for freedom.
The clause <em>when we can rest </em>is a subordinate/dependent clause, meaning that it cannot stand on its own - it has to be a part of a larger, independent clause, as is the case here.