Which of the following products would a northwestern farmer in the early nineteenth century be most likely to purchase from the east

A．It excluded American-born citizens of Japanese ancestry from landownership.
B．It sought to restrict the number of foreign immigrants to California.
C．It successfully prevented Issei from ever purchasing farmland.
D．It was applicable to first-generation immigrants but not to their American-born children.

A．advantageous for manufacturers.
B．inexpensive for merchants.
C．not economical for farmers.
D．considered economical by the government.