[Solved] You want to purchase IBM stock at $80 from your broker using as little of your own money as possible. If initial margin is 50% and you have $2,000 to invest, how many shares can you buy? A) 100 shares B) 200 shares C) 50 shares D) 500 shares E) 25 shares Laboratory Specimen: A sample of tissue, blood, urine, or other material from the body used for analysis and diagnosis in a laboratory. Sputum Specimen: A sample of mucus coughed up from the lungs, collected for laboratory analysis to help diagnose respiratory diseases. Surgical Incision: A cut made through the skin and tissues during surgery to gain access to the area being operated on. Occult Blood: Refers to the presence of blood in the feces that is not visible to the naked eye, usually detected by chemical tests.