The statement that best explains the increase in wheat production in Europe and the United States compared to sub-Saharan Africa is:
Option B: Farmers in Europe and the United States use high-yield seeds and other technology but farmers in sub-Saharan Africa depend on low levels of mechanization and non-genetically modified seeds.
This option highlights the critical differences in agricultural practices, technology access, and resources available to farmers in developed regions compared to those in sub-Saharan Africa, which directly impact wheat production levels.