B选项

问题如下：

A country depending on strong demand for export of its natural resources may find its economic growth limited over time due to:

选项：

A.a limited supply of labor B.rapid currency depreciation C.an inability to compete globally in manufacturing

解释：

A Incorrect because it is not the supply of labor, but currency appreciation resulting in more costly manufactured goods that limits growth because the cost of its manufactured goods will become uncompetitive compared to other nations.

B Incorrect because the strong demand for export of its natural resources will likely result in an appreciation of its currency.

C Correct because countries rich in resources may suffer the Dutch disease, where currency appreciation driven by strong export demand for resources makes other segments of the economy, in particular manufacturing, globally uncompetitive. The strength of the country's currency, driven by demand for resources, makes its manufactured goods more expensive and thus uncompetitive.