Which of the Following Statements Is Most Correct

Multiple Choice

Which of the following statements is most correct?

A) An inefficient portfolio maximizes return for a given level of risk, or minimizes risk for a given level of return.
B) A single asset is called a portfolio
C) The goal of an inefficient portfolio is to minimize risk for a given level of return.
D) Combining negatively correlated assets having the same expected return results in a portfolio with the same level of expected return and a lower level of risk.
E) all of the above