Greta Lundbrg is an active portfolio manager at Green Paradise Hedge Fund. Please mark the only portfolio management strategy that, as an active PM Greta is unlikely to follow: a. generate alpha for her fund by carefully relying on security analyst's bottoms up stock picks Ob. use macroeconomic research to market timing Oc. manage her Green Tech Fund by simply replicating the Nasdaq index Od. go long energy stocks (oil companies) and hedge the position by buying oil puts