单选题 According to this passage, those people disagree with the control of carbon dioxide because

【正确答案】 B
【答案解析】[试题分析] 事实推理题。
[详细解答] 关键语句:“Some groups that support burning oil and coal want to increase the amount of carbon dioxide in the atmosphere.They oppose international efforts to control carbon dioxide.”C),D)在文中没提,而A)而在文中出现在;“Some groups even suggest that an increase in carbon dioxide could cause plants to grow faster.”可见至少不是动机。