Read the following paragraph and identify its main idea:
'The prevalence of remote work has surged, compelling companies to adapt their operational strategies. This shift has led to increased investment in cloud computing and collaborative software to maintain productivity. Furthermore, businesses are rethinking traditional office spaces, with many opting for smaller, more flexible layouts or abandoning physical headquarters altogether. This evolution also presents new challenges in maintaining company culture and ensuring employee well-being from a distance.'
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A
Companies are investing more money in cloud computing.
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B
Remote work has forced companies to fundamentally change their operations and workplace concepts.
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C
Maintaining company culture is a new challenge for businesses.
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D
Traditional office spaces are becoming obsolete.