Which Does Not Change Canada's Short-Run Aggregate Supply

Multiple Choice

Which does not change Canada's short-run aggregate supply?

A) Prince Edward Island is submerged by an offshore earthquake.
B) Perfect weather all across Canada improves crop yields for all farmers.
C) People around the country upgrade their human capital by reading Economics for Life.
D) The Government of Canada passes new regulations reducing the imports of advanced Japanese robots by Canadian businesses.
E) American consumers stop buying Canadian beef during an outbreak of Mad Cow Disease.