In Figure 3-9, the current position of the supply curve is S1, and the price of a

Question:

In Figure 3-9, the current position of the supply curve is S1, and the price of a portable power bank is $3. If suppliers anticipate a higher price of portable power banks in the future, will the supply curve shift to S2 or to S3? What is the change in the amount of portable power banks supplied?