Answer:
By the 1670 planters in virginia began to slave labor because using slaves as collaterals allowed to expand the plantations.
<span>A candidate, or nominee, is the prospective recipient of an award or honor, or a person seeking or being considered for some kind of position; for example: to be elected to an office — in this case a candidate selection procedure occurs</span>
Ostpolitik was a German plan to "<span>b. improve relations with Eastern bloc nations," since this was during the Cold War, and it had become clear that such division was unhealthy from a social and economic standpoint. </span>
The answer is atomic number
I believe the correct answer would be c.