Answer:
B) The SRAS curve will shift to the right, and the short‐run Phillips curve will shift downward.
Step-by-step explanation:
When the price of key inputs decreases, then the short-run aggregate supply (SRAS) curve shifts to the right, generally resulting in higher production levels (higher supply) due to lower production costs. On the other hand, when the price of key inputs increases, then the SRAS curve shifts to the left.
When inflation expectations decrease or SRAS curve shifts to the right, the short-run Phillips curve shifts to the left.