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 point the gun at the store clerk