A network has $5$ subnets, each with at least $16$ hosts. Which subnet masks should be used?

$255\mathrm{.}255\mathrm{.}255\mathrm{.}192$

$255\mathrm{.}255\mathrm{.}255\mathrm{.}224$

$255\mathrm{.}255\mathrm{.}255\mathrm{.}240$

$255\mathrm{.}255\mathrm{.}255\mathrm{.}241$

$255\mathrm{.}255\mathrm{.}255\mathrm{.}248$