Spanning Tree protocol frames are encapsulated in Ethernet frames. Select the appropriate frame

$($: $2)$

ethernet v$\mathrm{.}1$

ethernet v$.2$

IEEE $802\mathrm{.}3$

IEEE $802\mathrm{.}3/802\mathrm{.}2$

IEEE $802\mathrm{.}3/802\mathrm{.}2$ SNAP

all of the above

none of the above