With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: John Smith luckily convinced the colonists of Jamestown that searching for gold early on was helping take care of their needs for food and shelter. The strong food security leading to extremely high survival rate was quite satisfying and cause for assurance among the colonists. To support the colony, numerous supply missions were organized. Tobacco later became a cash crop, with the work of John Rolfe and others, for export and the sustaining economic driver of Virginia and the neighboring colony of Maryland. Plantation agriculture was a primary aspect of the colonies in the southeast US and in the Caribbean. They heavily relied on their own labor due to a lack of African slave labor being used to sustain their economic pursuits.
text_B: Did Early settlers in Jamestown sometimes suffer from diseases like Rickets, Scurvy, or other nutritional diseases?
NO.