78. As shown below, compound IV can be prepared from reagents I, II, and III. Which of the following reaction conditions is the mostsuitable for the preparation of IV?
(A) I is slowly added to II, and III is then added to the above mixture.
(B) I is slowly added to II, and the resultant mixture is slowly added to III.
(C) II is slowly added to I, and III is then added to the above mixture.
(D) II is slowly added to I, and the resultant mixture is slowly added to III.
(E) I is slowly added to III, and II is then added to the above mixture.