Even so fundamental a dimension (量纲) as time was measured extremely crudely with sand and water clocks hundreds of years ago.

When you decide that you would not work with the company for whatever reason, you are expected to ________ inform the company and ________ present your appreciation for the offer when ________ declining the position. A: promptly, candidly, explicitly B: hesitantly, candidly, implicitly C: unnecessarily, ambiguously, bluntly D: sluggishly, candidly, crudely