TOEFL Reading: ETS-TOEFL阅读机经 - 1TP51D435BA4263JL$

What can be inferred from the information that the new plow "favored the concentration of wealth and control"? A. Wealthy farmers in the south had a significant economic advantage over farmers in the north. B. The production and sale of the new plow became an important source of capital. C. The new plow was more popular in parts of Europe where oxen were used for farming than in parts where horses were used. D. Greater economic equality existed in northern Europe before the introduction of the new plow.