For flow under sluice gate experiment, when the minimum specific energy $=22$ cm$,$ the channel width $=20$ cm$,$ the flow rate will equal to in m$3/$s:

a$.$

$0\mathrm{.}056$

b$.$

$0\mathrm{.}044$

c$.$

$0\mathrm{.}011$

d$.$

$0\mathrm{.}035$