Assume that you have $$165,000$ invested in a stock whose beta is $1,$$$165,000$ invested in a stock whose beta is $3,$ and $$165,000$ invested in a stock whose beta is $5.$ What is the beta of your portfolio?

A$)1\mathrm{.}37$

B$)2\mathrm{.}20$

C$)3\mathrm{.}00$

D$)1\mathrm{.}50$