All of the Following Are Disadvantages of Photovoltaic Solar Cell

All of the following are disadvantages of photovoltaic solar cell technology except

A) the manufacturing process requires toxic industrial chemicals.
B) the amount of land needed to hold the number of solar panels required for large-scale use.
C) each panel's low efficiency at converting solar energy to electricity.
D) the steadily increasing manufacturing cost per watt over the last 35 years.
E) the carbon dioxide emissions that contribute to greenhouse gases.