In its search for new technologies for solar energy that can produce lower-cost electricity, Smith-Diatom is developing a new way to make dye-sensitive solar cells, in which photons strike light-sensitive dyes. The process uses diatoms, which are unicellular algae that have silicon shells with a complex structure. First, the organic material is removed, and then the shells are coated with a titanium dioxide film that acts as a semiconductor. The diatoms' structure results in more photon activity and thus more efficient production of electricity than with current dye-sensitized solar cells, which in turn lowers the cost. Which of the following considerations would, if true, most strongly support the hypothesis that the plan, if implemented, will produce low-cost electricity from dye-sensitive solar cells? ['Diatoms are an important link in oceanic food chains and help cycle carbon dioxide from the atmosphere.', 'Because diatoms occur naturally, no special engineering processes are needed to produce the basic dye-sensitive solar cell structures.', 'Dye-sensitive solar cells work somewhat more efficiently in lower light than previous solar cell technologies.', 'The production of dye-sensitive solar cells primarily uses materials that do not harm the environment.']