Each of the following is a supply shifter except:
a.
number of sellers in a given market
b.
cost of production of a specific good
c.
change in consumer price expectations
d.
change in producer price expectations

b would be correct

Explanation:

i took the unit test

to protect the united states' role as a world leader, president truman wanted to prevent the soviet union from spreading communism beyond its post-world war ii boundaries. he declared that the united states must assist any nations struggling to prevent a communist takeover.

nations must cooperate to bring about and maintain world peace.

nations must not wage wars or commit war crimes in a desire to control other nations.

i think i know which options you have but if these aren't options let me know