单选题 As she has a kindly, outgoing nature, she is a ______ hostess and has a wide circle of very good friends.
【正确答案】 C
【答案解析】sober-minded认真而谨慎的;stringent严格的,严厉的;superb极好的,杰出的;assiduous勤勉的,刻苦的。