Answer:
Scenario A:
An increase in productivity suggests a fall in the expense of creation, which prompts increment in short run total supply.
Scenario B:
An increase in the cost of timber prompts an increment in cost of production. An ascent in cost of creation prompts a"1 in short run total stockpile.
Scenario C:
Decrease in the production of oil. As, the typhoons Katrina and Rita devastated 109 oil stages and five boring apparatuses in the Gulf of Mexico, yet just a little bit of production will be lost for good.