For Which of the Following Situations Will Courts Admit Show-Up

Multiple Choice

For which of the following situations will courts admit show-up identifications?
I. when witnesses accidentally confront suspects
II. in emergencies, when witnesses are hospitalized
III. for witness convenience, when witnesses are in a hurry
IV. when witnesses are not quite sure of a prior identification

A) I, II, III, IV
B) I, II, III
C) I, II
D) I