Answer:
B) a document with comparative data on solar energy use over the last twenty years
Step-by-step explanation:
In the prompt it states that Giselle is gathering data on solar energies popularity. Since her data is only on solar energy, option D should be eliminated because it talks about other renewable sources of energy. Option C is also incorrect because it is about a variety of energy sources. Opion A is also incorrect because Giselle's data is only about solar energy's popularity, not the benefits of using solar energy.