Calculating a beta coefficient for a portfolio

Avangard Aviation is a public company, and Aviation Fund is a relatively well$-$diversified mutual fund. The following two graphs show regressions for the market's historic realized returns versus historic realized returns on Avangard Aviation and Aviation Fund.

Which of the graphs most accurately represents the relationship between the market historic realized returns and realized returns on Aviation Fund?

Graph A

Graph B

Which of the following measures the average return earned by a portfolio, over and above the risk$-$free rate of return, divided by the standard deviation of the portfolio's a verage returns?

Jensen's alpha

Treynor's reward$-$to$-$volatility ratio

Sharpe's reward$-$to$-$variability ratio