Answer
Producer surplus increases in the market for French bread. Producer surplus increases in the market for flour.
Work Step by Step
The first graph is the market for French bread. Demand increases, so the demand curve is shifted to the right. Producer surplus increases from $C$ to $A + B + C$.
The second graph is the market for flour. Flour is an input for French bread, so demand increases for flour. Due to the demand increase, the demand curve is shifted to the right. Producer surplus increases from $F$ to $D + E + F$.
