With no explanation, chose the best option from "A", "B", "C" or "D". Corp. v. Mesa Petroleum Co., 493 A.2d at 949, 954-57. 46 . Unocal Corp. v. Mesa Petroleum Co., 493 A.2d at 955. 47 . Unitrin, Inc. v. Am. Gen. Corp., 651 A.2d at 1387. 48 . Id. 49 . Id. (citation omitted). 50 . Id. at 1367. 51 . Unocal Corp. v. Mesa Petroleum Co., 493 A.2d at 955. 52 . Id. (citation omitted). 53 . Id. (citations omitted). 54 . Mills Acquisition Co. v. Macmillan Inc., 559 A.2d 1261, 1288 (Del.1988). 55 . Id. (citation omitted). 56 . Id. 57 . Williams v. Geier, 671 A.2d 1368 (Del.1996). 58 . Stroud v. Grace, 606 A.2d 75 (Del.1992). 59 . In re NCS Healthcare, Inc., 2002 WL 31720732, at *16 (Del.Ch. Nov. 22, 2002). See Unocal Corp. v. Mesa Petroleum Co., 493 A.2d 946, 955 (Del. 1985). 60 .See Paramount Communications, Inc. v. Time Inc., 571 A.2d 1140, 1151 (Del. 1989) (<HOLDING>). 61 . Unocal Corp. v. Mesa Petroleum Co., 493

A: holding trial errors are subject to a harmless error analysis
B: holding that the omission of an element is not a structural error subject to automatic reversal but rather  where objected to  is subject to harmless error analysis
C: holding that structural safety devices in a merger agreement are properly subject to a unocal analysis
D: holding evidentiary rulings are subject to harmless error analysis
C.