题型分类：态度题
题干分析：题干中how did she feel确定为态度题

选项分析：

提问的是percentage，在说percentage之前，先表明了“they were amazed, we all were,”后面加to find...20 to 30 percent, converts into meaningful genetic information此句为重点句，大家都对“”这个结果感到惊讶，而且同时后面出现了同义重复It's incredible, at least it was to me，因此选项B正确。