Working with the options, you can easily answer to that question. The question is about identification of the key words while including these words into the search box. We want to find information about "laws governing special education policies in elementary schools". The answer A is incorrect because it does not cover all the information we want to find. The same logic applies to the answer D. The answer B is not related to the information we are looking for. The option C contains all the key words we need.