Your eccentric Aunt Claudia has left you $50,000 in BP shares plus $50,000 cash. Unfortunately, her will requires that the BP stock not be sold for one year and the $50,000 cash must be entirely invested in one of the stocks shown below. BHP Billiton Siemens 1.00 0.31 1.00 Nestle -0.05 0.33 1.00 LVPH 0.34 0.22 0.12 BHP Billiton Siemens Nestle LVMH Toronto Dominion Bank Samsung BP Toronto Dominion Bank 0.52 0.19 0.13 0.30 1.90 Samsung 0.44 0.36 0.05 0.48 8.20 1.00 BP 0.41 -0.09 0.13 0.06 0.27 0.28 1.00 26.40 15.40 28.90 27.70 9.00 20.60 Standard deviation (%) a. Calculate the portfolio variance for seven different portfolios. (Use decimais, not percents, in your calculations. Do not round Intermediate calculations, Enter your answers as o decimal rounded to 5 places.) Portfolio Variance BHP Siemens Nestle LVMH Toronto Dominion Bank Samsung b. What is the safest attainable portfolio under these restrictions? O BP and BHP O BP and Siemens O BP and Nestl O BP and LVMH O BP and TDB OBP and Samsung