Select all that are true with respect to why it is that systematic (and not unsystematic) risk is what matters when trying to understand discount rates:
a)- Because systematic risk can be cheaply/easily eliminated through diversification.
b)- Because discount rates are fully determined by an individual asset's risk.
c)- Because unsystematic risk can be cheaply/easily eliminated through diversification.
d)- Because in a competitive market, investors can largely eliminate unsystematic risk cheaply/easily and thus don't demand to be paid for bearing it.