Option 1: Lance Armstrong lost his seven Tour de France victories in 2012 after being convicted of blood doping. In blood doping, extra red blood cells (which carry oxygen throughout the body) are injected into an athlete. Explain why blood doping would give an athlete an advantage in an endurance event like the Tour de France. Use terms and concepts from this unit. Option 2: A student poured a solution of bromothymol blue into 3 test tubes. She then placed an aquatic plant into 2 of the test tubes. She placed a stopper on each test tube and placed them all in the dark for 24 hours. Bromothymol blue is yellow in a high CO2 environment and turns blue when the CO2 levels decrease. After 24 hours in the dark, the solution in test tubes 2 and 3 had turned yellow. The student then placed test tube 3 in a sunny window, and left test tube 2 in the dark. After 8 hours in the sunny window, what is the final color of the solution in test tube 2