Answer:
"the kind of sugar easiest to produce from cane is dark" and "wanted it to be pure, sweet, and white as possible"
Step-by-step explanation:
"the kind of sugar easiest to produce from cane is dark": shows that white sugar takes more effort to procure, therefore rarer than dark sugar.
"wanted it to be pure, sweet, and white as possible": the noble and wealthy wanted white sugar. this shows that it is valued by those of higher status. as they wanted it white as possible, it is clear that white sugar is valued more than dark sugar.