A)Define the long-run aggregate supply curve? Is there any relationship between the production-possibilities (p-p) curve and its long-run aggregate supply curve (LRAS)?

Explain any differences.

B)What are the main factors that can cause the p-p curve to shift? Do these factors also cause the LRAS to shift? Has Covid-19 caused Canada's LRAS curve to shift? Explain.

C)Regarding the GDP, provide an example of how double-accounting might occur. How can double-accounting be avoided? Explain how price indexes are used to deflate and inflate the GDP.

Why?