Answer:
The right solution is "$900".
Step-by-step explanation:
- GDP seems to be the cash value of all finished goods products as well as services produced in something like a single year throughout a region. The farmer develops wheat here though and markets these for $200 to such a miller.
- The miller transforms the wheat into flour which offers something for $500 to something like a baker. After that, the final good becomes bread.
Thus, the GDP seems to be $900.