Suppose the Economy Is in Long-Run Equilibrium

Multiple Choice

Suppose the economy is in long-run equilibrium. In a short span of time, there is a large influx of skilled immigrants, a major new discovery of oil, and a major new technological advance in electricity production. In the short run, what would we expect to happen?

A) The price level will rise, and real GDP will fall.
B) The price level will fall, and real GDP will rise.
C) The price level and real GDP will both stay the same.
D) The price level and real GDP will both fall.