50. Which description about cell death is not right (A)Basement membrane is required for cell survival call anchorage-independent growth (B)Apoptosis is the only one type of cell death (C)Cytochrome C releasing is critical for caspase-3 activation (D)Caspase-3 activation need the proteolytic cleave procaspase-3 (E)（A）and （B）are not right