[单项选择]Although glasswares that were made in England dominated the early North American market,glassblowers from Great Britain were not easily persuaded to go to the North American colonies. The eighteenth century was the golden age of English glass: the industry and its employees prospered. Glassmakers were discouraged from emigrating because if English-quality glass were produced in the colonies the home industry would have been threatened. In one instance, five English glassmakers were arrested in England as they boarded a ship for America.
In spite of England’s disapproval of American manufacturing, an interest in glassmaking recurred periodically during the entire colonial era. The actual number of glass factories erected was small, only twelve or so, probably because the manufacturing of glass required a considerable initial investment in a large facility and a team of skilled workers. Glasshouses, as the glassmaking factories were called, could not be erected anywhere. Rather,
A. The need for glass products in the colonies was declining.
B. The glassblowing industry was highly successful in England.
C. The colonies did not have the necessary raw materials to make glass.
D. The colonists required a different kind of glass than the English mad