Under which board rule is a licensed engineer such as Alex obligated to inform the client?

Select the Best Answer and Click SUBMIT

$137\mathrm{.}55($a$)$

$137\mathrm{.}61($c$)$

$137\mathrm{.}57($c$)$

$137\mathrm{.}63($c$)(4)$

$137\mathrm{.}65($b$)$