The design ultimate load wu$,$ supported by beam B$2$ on grid C is: $($select the nearest which applies$)$ a$)4\mathrm{.}116$ kip$/$ft b$)5\mathrm{.}586$ kip$/$ft c$)6\mathrm{.}006$ kip$/$ft d$)4\mathrm{.}382$ kip$/$ft e$)5\mathrm{.}250$ kip$/$ft Concrete f$\text{'}$c $4,000$ psi Unit weight $150$ pcf Cover $1\mathrm{.}5"($beams$)0\mathrm{.}75"($slabs$)$ Reinforcement fy $60,000$ psi $/$r$/$n Beams, B$1$ to B$4$: $16^\text{'}\text{'}\backslash$times $30^\text{'}\text{'}(21"$ below slab$)$ Girders, G$1$ to G$4$: $16"$ x $34"(25"$ below slab$)$ Columns: $16^\text{'}\text{'}\backslash$times $16^\text{'}\text{'}$