Need help in eco p1

[Sijan92]

5 What is not held constant when aggregating individual firms’ supply curves to give the market
supply curve?
A the number of firms in the industry
B the price of the product
C the prices of factors of production
D the state of technology

Can anyone explain why B is the correct answer???

 

[Randomz]

When any supply curve is drawn it is assumed that all other factors, beside price are held constant. The same theory applies when finding the market supply. Did that help?

 

[Sijan92]

yea. got it. thanks