_________quality and prices are satisfactory, there are prospect

_________quality and prices are satisfactory, there are prospects of good sales here.
A、Provided
B、Even
C、Though
D、Unless
【正确答案】：A
【题目解析】：provided意为”假如，倘若“；even意为”甚至“；though意为”虽然，尽管“；unless意为”除非，如果不“；句意：只要质量和价格令人满意，这里就有良好的销售前景。