Shena's portfolio has a Treynor ratio of 7.8, while Teva's portfolio has a Treynor ratio of 8.9. The S&P/TSX has a Treynor ratio of 8.3. Interpret the performance of the two portfolios.

A. Shena outperformed both the market and Teva's portfolio.
B. Teva outperformed Shena's portfolio but underperformed the market.
C. Teva outperformed both the market and Shena's portfolio.
D. Shena outperformed both the market and but underperformed Teva's portfolio.