${?}_{{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_h\text{e}\text{l}\text{p}(s)\text{p}\text{r}\text{e}\text{v}\text{e}\text{n}\text{t}\text{a}\text{h}\text{a}\text{r}\text{d}\text{d}\text{r}\text{i}\text{v}\text{e}\text{f}\text{r}\text{o}\text{m}\text{b}\text{e}\text{i}\text{n}\text{g}\text{a}single\text{p}\text{o}\text{i}\text{n}\text{t}of\text{f}\text{a}\text{i}\text{l}\text{u}\text{r}\text{e}\text{.}{?}_{?}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_h\text{e}\text{l}\text{p}(s)\text{p}\text{r}\text{e}\text{v}\text{e}\text{n}\text{t}\text{a}\text{s}\text{e}\text{r}\text{v}\text{e}\text{r}\text{f}\text{r}\text{o}\text{m}\text{b}\text{e}\text{i}\text{n}\text{g}\text{a}single\text{p}\text{o}\text{i}\text{n}\text{t}of\text{f}\text{a}\text{i}\text{l}\text{u}\text{r}\text{e}\text{.}{?}_{?}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}\text{h}\text{e}\text{l}\text{p}(s)\text{p}\text{r}\text{e}\text{v}\text{e}\text{n}\text{t}\text{a}\text{p}\text{e}\text{r}\text{s}\text{o}\text{n}\text{f}\text{r}\text{o}\text{m}\text{b}\text{e}\text{i}\text{n}\text{g}\text{a}single\text{p}\text{o}\text{i}\text{n}\text{t}of\text{f}\text{a}\text{i}\text{l}\text{u}\text{r}\text{e}\text{.}}$

Group $of$ answer choices

Disaster recovery plan, RAID, Additional personnel

Additional personnel, RAID, Job$-$rotation

RAID, Failover clusters, Access controls

RAID, Failover clusters, Cross$-$training