单选题 Here, so profligate has its use become the air conditioner is almost______the automobile of the national tendency to overindulge in every technical possibility, to sue every convenience to such excess that country looks downright coddled.
【正确答案】 B
【答案解析】解析：分析本题，整句是一个so that句型，that在这里省略了，它引导的结果状语从句是同级比较的句型，B项符合题意。