A passage states: 'Although renewable energy sources have grown significantly, fossil fuels still account for the majority of global energy consumption.' What is the primary purpose of the word 'Although' in this sentence?
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A
To introduce a concession before presenting a contrasting fact
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B
To indicate that renewable energy is superior to fossil fuels
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C
To suggest that fossil fuel use is declining rapidly
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D
To imply that renewable energy growth is insignificant