It would be letter a, since an interrogative sentence is question. Since the first answer is the only one with a question mark, the answer is a.
Answer
The correct option is: c
Documented cases have shown eyewitnesses adding detail to testimony.
According to the text provided, when a witness repeats the accounts of an event, it´s very likely that some details will be added, as memory changes over time, especially the more a story is retold. Furthermore, the more a witness's description is repeated, the less reliable it is.
Um what selection theres no attach pic