Books in European libraries last longer than books in libraries in the United States because, although the climate in Europe is fairly humid, libraries there are not subjected to the extremes of temperature and humidity that damage collections in the United States.

• Abecause, although the climate in Europe is fairly humid, libraries there are not subjected to the extremes of temperature and humidity that  
• Bbecause, although the climate in Europe is fairly humid, libraries there are not subject of the extremes of temperature and humidity as those that  
• Cbecause, although the climate in Europe is fairly humid, libraries there are not subjected to the extremities of temperature and humidity as  
• Dbecause the climate in Europe is fairly humid, but still libraries there are not subject of the extremes of temperature and humidity as  
• Ebecause the climate in Europe is fairly humid, but libraries there are not subjected to the extremities of temperature and humidity such as those that