Each ot the tollowing events caused a snitt in the AD or AS curve in Canada. Identity which curve was affected and describe the effect on equilibrium real GDP and the price level. a. OPEC's actions to restrict oil output significantly increased the world price ot oil in 19791980. Canada is a net expoer ot oil This event caused a snitt in botn the AD curve and the AS curve in Canada, causing an increase in equilibrium real GDP and an increase in the price level b. World commodity prices increased sharply from 2002 to 2008. Many of these commodities are botn produced in Canada and used as impoant inputs for Canadian firms. Assume that Canada is a net exporter of these commodities. This event caused a snitt in in Canada, causing Y in equilibrium real GDP and c. The end otthe Cold War in 1990 led to large declines in defence spending in many countries (including Canada). This event caused a snitt in in Canada, causing Y in equilibrium real GDP and d. The federal government and (many) provincial governments reduced corporate income-tax rates between 2000 and 2015. This event caused a snitt in in Canada, causing e. The federal government increased its level ot government purchases (G) in 2009 and 2010, amidst a global recession. This event caused a snitt in in Canada, causing Y in equilibrium real GDP and Y in equilibrium real GDP and t. The beginning ot a strong recovery in the United States in 2014 led to a large increase in the demand tor many Canadian exports. This event caused a snitt in in Canada, causing Y in equilibrium real GDP and g. The world price ot oil tell from LLS. S105 per barrel in June 2014 to LIS. $50 in February 2015. Canada is a net exporter ot oil. This event caused a snitt in in Canada, causing Y in equilibrium real GDP and in the price level in the price level in the price level in the price level in the price level in the price level h. The possible cancellation ot the North American Free Trade Agreement led many Canadian firms to reduce desired investment in 2017 and 2018. This event caused a snitt in in Canada, causing Y in equilibrium real GDP and in the price level