Правильный ответ

The Standard for Portfolio Management – 4th Edition, 7.4, 7.5, 7.6: The correct answer is D.
This is correct because it aligns with the concept of the Efficient Frontier in Modern Portfolio Theory. This theory identifies portfolios that provide the maximum expected return for a given level of risk. It ensures that for every level of risk, the portfolio is optimized to yield the best possible return, which is the essence of being "efficient" in portfolio management.
The concept is crucial in portfolio management as it helps in identifying the most efficient allocation of assets, balancing between risk and return. This optimization allows portfolio managers to make informed decisions that maximize returns while managing potential risks effectively.

Why Other Options Are Incorrect:
A: While a mix of components from high risk/high return to low risk/low return can be part of a diversified portfolio, it does not specifically relate to the definition of an "efficient" portfolio in the context of the Efficient Frontier.
B: Quantifying risk in monetary terms is part of risk management but does not define portfolio efficiency according to the Efficient Frontier theory.
C: While overall portfolio value and benefits are important, the Efficient Frontier specifically addresses the balance between expected return and risk, not just maximizing possible benefits.

Therefore, option D is the most accurate representation of an efficient portfolio as per the Efficient Frontier in portfolio management.