单选题 They both watched as the crime scene technicians took samples of various fibers and bagged them,dusted for fingerprints,took pictures and tried to _____what could have happened.
【正确答案】 D
【答案解析】[解析] 题干句意为：当犯罪现场技术人员对各种纤维进行取样以及装袋、提取指纹、拍照以及尝试______曾经发生的事情时，他们二人都在旁边观察。D选项reenact意为“重现，重新制定，再扮演，再制定”，代入原句意为“场景重现”，符合文意。因此，正确答案是D。