【正确答案】 D

【答案解析】原文：The Online Dating Association in the UK reported that around 2. 3 million British citizens used dating apps during the lockdown. Cyber criminals have taken advantage of this to scam people. A total of $26 million is believed to have been lost in bank transfer fraud. The average loss per victim is around $ 11,000. According to data from a UK bank, people aged 55 to 64 are the most vulnerable to romance fraud. Pauline Smith, a fraud expert, said: " Any online platform that allows you to connect with and talk to other people could be targeted by romance fraudsters, so it’s important to remain vigilant. " She urged extreme caution if an online love interest requests money for things like medical care.根据新闻定位句可知，长时间盯着电脑屏幕不仅仅是疲劳和眼睛疲惫。它也是由“认知超负荷”和不断被释放的压力造成的，以及这种焦虑会对你的自信产生负面影响。故选D。