单选题 Compact with a traditional polygraph a thermal camera ______.

【正确答案】 B
【答案解析】由第二段的…does not require a highly trained specialist to operate it or interpret its results可知与传统的测谎仪相比,它不必由高级专业人员操作或者诠释其结果。所以正确答案是B(很易操作)。