${?}_{{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{i}s\text{a}\text{s}\text{t}\text{a}\text{t}\text{i}\text{s}\text{t}\text{i}\text{c}\text{a}\text{l}\text{t}\text{e}\text{c}\text{h}\text{n}\text{i}\text{q}\text{u}\text{e}\text{t}\text{h}\text{a}\text{t}is\text{w}\text{i}\text{d}\text{e}\text{l}\text{y}\text{u}\text{s}\text{e}\text{d}to\text{e}\text{n}\text{s}\text{u}\text{r}\text{e}\text{t}\text{h}\text{a}\text{t}\text{p}\text{r}\text{o}\text{c}\text{e}\text{s}\text{s}\text{e}\text{s}\text{m}\text{e}\text{e}\text{t}standards.}$

Question $38$ options:

$SPC$

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