The Slope of the Efficient Frontier Is Calculated as Follows $\sigma$

Multiple Choice

The slope of the efficient frontier is calculated as follows

A) E(R_portfolio) /E( $\sigma$ _portfolio)
B) E( $\sigma$ _portfolio) / E(R_portfolio)
C) $\Delta$ E(R_portfolio) / $\Delta$ E( $\sigma$ _portfolio)
D) $\Delta$ E( $\sigma$ _portfolio) / $\Delta$ E(R_portfolio)
E) None of the above