(1. The firm Charlotte's Calamitous Capitals, Ltd., holds a portfolio of stocks A, B, and C, with weights of: 0.1, 0.1, and 0.8, respectively, and standard deviations of: 9.9263, 10.4032, and 9.8673, and the covariance matrix for this portfolio is: 98.5319 1.5597 -2.2415 1.5597 108.2263 4.5398 -2.2415 4.5398 97.3629 The variance of this portfolio is the closest to: (Hint: use Excel MMULT function to calculate the portfolio variance): Select one:

a. 9.93

b. insufficient information to determine

c. 10.40

d. 6.52

e. 0.66

f. 9.87

g. 64.78