Which of the Following Is True About Analytical Tools Useful

Which of the following is true about analytical tools useful in "strategic" long horizon, big picture) and "tactical" shorter horizon, more specific) investment policy analysis for portfolio management?

A) Modern portfolio theory MPT) is most useful for strategic analysis and equilibrium asset price modeling such as the CAPM) is most useful for tactical analysis.
B) Modern portfolio theory MPT) is most useful for tactical analysis and equilibrium asset price modeling such as the CAPM) is most useful for strategic analysis.
C) Both models are equally useful at both levels.
D) Neither theory is very useful at either level.