Which choice best describes the overall structure of the passage? * 1 point A. A list of several ways in which salt's properties differ from researcher's expectations B. A presentation of a hypothesis regarding salt behavior, description of an associated experiment, and explanation of why the results weaken the hypothesis C. A description of two salt crystal experiments, the apparent disagreement in their results, and the resolution by more sensitive equipment D. An introduction to an interesting salt property, description of its discovery, and speculation regarding its application