A simply supported beam having $12$ span using $4-$cources $8$x$8$x$16$ CMU units. The compressive strength of the masonry is $2000$ psi and Grade $60$ steel is used. Units are laid in running bond and type S mortar is used. WDL$=2600$ plf and WLL$=800$ plf$.$ Determine if the beam can adequately support the applied loads. A$)2$#$6$ are used in one layer.B$)2$#$6$ are used in two layers $($one bar in each layer$)$