If your goal is to obtain information about laws governing special education policies in elementary schools, the search that would return the best results is B. Special education laws elementary schools.
B. is the correct one because it is the most specific search among the options available. In other words, option B. includes all the necessary keywords to do an effective search and get the best results. On the other hand, the rest of the options miss out a keyword. In option A., 'law' and 'elementary schools' are not present, while in option C. 'elementary schools' is missing too. Moreover, option D. does not include 'special' nor 'laws'.