Capital Asset Priting Modei $($CAPM$)$: Compare the Cost of Equily, as calculated by CAPM, for Eccon Mobil $($XOM$)$ and Tesla $($TSLA$).$

$-$What is the CAPM cost of equity for Eccon Mobll? $q,(2)$

What is the CAPM cost of equity for Tesla? $$

Given this information onlys which company is the better investment to add to a conservative portfollio, and why? $(3)$