[Solved] Using the PLC concept for forecasting product performance or for developing marketing strategies presents some practical problems.Which of the following is NOT one of these practical problems? A)accurate estimates of sales at each PLC stage B)length of time spent in each PLC stage C)the shape of the PLC curve D)the PLC being used for fads or fashions E)A and B only Biopsy: The removal and examination of tissue samples from the body for diagnostic purposes, often to determine the presence or extent of a disease. Excision: The surgical removal of a foreign body or of tissue. Microscopic Examination: The detailed analysis of tiny objects or structures using a microscope to observe features not visible to the naked eye. Cryosurgery: A surgical technique that uses extreme cold, often liquid nitrogen, to destroy abnormal or diseased tissue, including skin lesions.