If the distance leveled in Problem $4$ is $1,000ft,$ for what order of survey do the results qualify?

Allowable error in leveling

Third order

Second order, Class II

Second order, Class I

First order, Class II

First order, Class I

$+-12mm\sqrt[\phantom{2}]{k}=+-0\mathrm{.}05ft\sqrt[\phantom{2}]{M}$

$+-8mm\sqrt[\phantom{2}]{k}=+-0\mathrm{.}033ft\sqrt[\phantom{2}]{M}$

$+-6mm\sqrt[\phantom{2}]{k}=+-0\mathrm{.}025ft\sqrt[\phantom{2}]{M}$

$+-4mm\sqrt[\phantom{2}]{k}=+-0\mathrm{.}017ft\sqrt[\phantom{2}]{M}$

$+-3mm\sqrt[\phantom{2}]{k}=+-0\mathrm{.}013ft\sqrt[\phantom{2}]{M}$