单选题 What can be inferred from the last sentence of the text?

A、 Low-wage workers from other countries are welcomed in the U. S. than the U. S. labor.
B、 He competition between low-wage workers from other countries and the U. S. labor become more direct in more fields than before.
C、 Unskilled workers will face more direct competition than highly skilled workers.
D、 The low-wage workers from other countries compete with the U. S. labor only in the fields of call centers and programmers.

【正确答案】 B

【答案解析】文章最后一句说明来自远东和其他国家的低薪工人与美国劳动力的竞争范围更加广泛，也更加直接，从不需要什么技术的电话中心的工作到需要技术的程序员都存在双方的竞争。[A]文中未提及。[C]文中没有比较非技术的和技术的工人面临竞争的比较。 [D]只是文中举出两个极端的例子，旨在说明竞争范围更加广泛，而非说明这两个行业存在竞争。