参考答案

正确答案：B
解析：文章指出，证据表明，任何引发后来的攻击行为的原因不是对玻璃的描绘，而是这种兴奋感。第二段the evidence suggests that any exciting material can trigger subsequent aggressive behavior. and that it is the excitation rather than the portrayal of violence that instigates or energizes any subsequent violent behavior．