A well$-$known source of risk called Systematic risk, cannot be diversified away $($B&E text says this$),$ but it can be considerably eliminated by:

Question $20$ options:

A$)$

constructing a diversified dollar neutral hedged portfolio

B$)$

constructing a well diversified beta neutral hedged portfolio

C$)$

pairing high beta stocks versus low beta stocks $($equal $ amounts$)$

D$)$

investing globally and thinking locally