Please help me with this question!

You have the following stocks to choose from: \begin{tabular}{|c|c|c|c|c|c|c|c|} \hline \multicolumn{8}{|c|}{ You have the following stocks to choose from: } \\ \hline Stock & Shares & Market Price Today & MarketPrice 1 year ago & MarketPrice 2 years ago & MarketPrice 3 years ago & MarketPrice 4 years ago & Market Price 5 years Ago \\ \hline A & $10,000.00 & 121.00 & 112.00 & 70.00 & 100.00 & 80.00 & 70.00 \\ \hline B & $50,000.00 & 10.00 & 8.00 & 7.00 & 6.00 & 5.50 & 5.00 \\ \hline C & $20,000.00 & 101.00 & 75.00 & 80.00 & 63.00 & 56.00 & 55.00 \\ \hline D & $500.00 & 3,000.00 & 5,000.00 & 4,000.00 & 3,000.00 & 2,500.00 & 2,000.00 \\ \hline \end{tabular} \begin{tabular}{|c|c|c|c|} \hline & EAR & CV & Best? \\ \hline A\&B & & & \\ \hline A\&C & & & \\ \hline B\&C & & & \\ \hline B\&D & & & \\ \hline C\&D & & & \\ \hline \end{tabular}