what is minimum variance portfolio, efficent frontier, tangency porfolio, and sharpe ratio? and are all of these on the Capital Allocation Line? can you please explain a simple as you can

25.00 INVESTMENT OPPORTUNITY SET 20.00 CML Tangency Portfolio 15.00 Efficient frontier of risky assets Expected resun 10.00 Minimum Variance Portfolio 11= 8.00 Came from Table befine 5.00 0.00 0.00 5.00 10.00 15.00 20.00 25.00 30.00 Standard devorth 6. The above graph indicates that the optimal portfolio is the tangency portfolio with expected return approximately 15.6% and standard deviation approximately 16.5%