${?}_{\text{W}\text{h}\text{i}\text{c}\text{h}of\text{t}\text{h}\text{e}\text{f}\text{o}\text{l}\text{l}\text{o}\text{w}\text{i}\text{n}\text{g}\text{a}\text{r}\text{e}\text{r}\text{i}\text{s}\text{k}\text{s}of\text{i}\text{n}\text{v}\text{e}\text{s}\text{t}\text{i}\text{n}\text{g}in\text{f}\text{u}\text{t}\text{u}\text{r}\text{e}\text{s}\text{c}\text{o}\text{n}\text{t}\text{r}\text{a}\text{c}\text{t}\text{s}\text{?}}$

$A.$ Under certain market conditions, $it$ may also $be$ difficult $or$ impossible $to$ manage your risk from open security futures positions $by$ entering into $an$ equivalent but opposite position $in$ another contract month, $on$ another market, $orin$ the underlying security.

$B.$ Under certain market conditions, the prices $of$ futures contracts may not maintain their customary $or$ anticipated relationships $to$ the prices $of$ the underlying security $or$ index.

$C$: Both A and $B.$