A rise in both nominal and real GDP , even when driven mainly by higher prices, generally indicates an increase in overall business activity , making Option C the correct answer. The Investment Funds in Canada course explains that nominal GDP measures output using current prices, while real GDP adjusts for inflation to reflect actual growth in economic output.

If both nominal and real GDP rise, this suggests that the economy is producing more goods and services, not merely experiencing price increases. Increased production typically results in higher employment, greater corporate revenues, and expanded economic activity.

Option A is incorrect because rising GDP—especially when price pressures exist—often leads to higher , not lower, interest rates as central banks attempt to control inflation. Option B is incorrect because living standards improve primarily when real GDP growth exceeds inflation, not when growth is mainly price-driven. Option D is incorrect because higher prices indicate inflationary pressures, not a decrease.

The CIFC curriculum emphasizes that GDP growth is a primary indicator of economic expansion and business activity. Therefore, Option C is the correct and fully CIFC-aligned answer.