13. Currently, your portfolio consists of $3,000 invested in share A with a beta of 0.7 and $4,000 in share B with a beta of 0.5. You have another $12,000 to invest and want to divide it between share C with a beta of 1.3 and a risk-free asset. You want your portfolio beta to be 0.9. How much (to the nearest dollar) should you invest in the risk free asset?

1. $ 2,000
2. $10,000
3. $8,800
4. $3,000