using the ontario $2012$ building code please answer the following $3$ questions:

Access from a storage garage to elevators of a six$-$storey building is provided through a vestibule. What is the minimum area of unobstructed vent area required for this vestibule?

Cannot be determined with given data

bWindows should be at least $0\mathrm{.}4m^2$

Windows should be at least $4\mathrm{.}6m^2$

Windows should be at least $0\mathrm{.}6m^2$

$10.$ What is the minimum area in a sleeping room shared by $6$ workers that should be provided with the minimum ceiling height?

A Cannot be determined with given data

bAt least an area of $3\mathrm{.}73m^2$

cAt least an area of $23\mathrm{.}0m^2$

dAt least an area of $11\mathrm{.}2m^2$

$11.$ Under which of the following circumstances, an air$-$supported structure is permitted to be to have mezzanine constructed for the intended function?

OBC does not permit including mezzanines in air supported structures

bf the interior construction meets the requirements of $3\mathrm{.}2\mathrm{.}2\mathrm{.}20-3\mathrm{.}2\mathrm{.}2\mathrm{.}83$

df the separation between the exiting building and the air supported structure is $1h$ fire rated.

Both $B$ and $C$ may permit attaching an air supported structure an existing building

$12.$ What are the minimum internal dimensions of a universal washroom?

$\backslash$table$[[a,1500mm1500mm$