At a Trial,four People Who Were Present During a Convenience

At a trial,four people who were present during a convenience store robbery testify about what they saw.Whose testimony should be most accurate?

A) Jim, who made his identification from a sequential lineup
B) Lucas, who, unlike the suspect, is African-American
C) Donald, the convenience store clerk at whom a gun was pointed
D) Robert, who immediately wrote a letter to his mother describing the suspect
E) James, who was in the store when the robber pointed the gun at the store clerk