阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。
A
A person named Bernard Jackson today is a free man, but he has many bitter memories. He spent five years in prison after a jury (陪审团) wrongly convicted (判处……有罪) him of raping two women. At Jackson’s trial, although two witnesses testified that Jackson was with them in another location at the
time of the crime, he was convicted anyway. Why? The jury believed the testimony (证词) of the two victims, who positively identified Jackson as the man who had attacked them. The court eventually freed Jackson after the police found the real criminal.
Many factors influence the accuracy of eyewitness testimony. For instance, witnesses sometimes see photographs of several suspects before they try to identify the person they saw in a group of people. They can
