Portfolio Beta: You own $31,000 of City Steel stock that has a beta of 3.41. You also own $43,000 of Rent-N-Co (beta = 1.86) and $21,600 of Lincoln Corporation (beta = -.74). What is the beta of your portfolio?
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A) 4.69
B) 1.00
C) 4.53
D) 1.78