The words “in the heat of the moment” in Paragraph 4 probably mean “______”.

参考解析：

词义猜测题。第四段第二句“However, when they make decisions in the heat of the moment or in social situations, their decisions are often influenced by factors like peers.”指出，当他们在关键时刻或社交场合做出决定时，他们的决定往往会受到同龄人等因素的影响。根据本段最后一句话“This shows that teens may find it more difficult to control risky behavior when their friends are around, or in situations where they are extremely angry.”可知，青少年在很生气的情况下或者有朋友在身边时，他们很难控制危险的行为。所以“in the heat of the moment”指的是他们难以控制愤怒的时候。选项A译为“当青少年避免可能的危险的时候”；选项B译为“当青少年相信他们的判断的时候”；选项C译为“当青少年没能控制住愤怒的时候”选项D译为“当青少年考虑多种情形的时候”。故选C。