$.$ A $220\mathrm{.}45m$ thick footing carries a $0\mathrm{.}400\mathrm{.}40m$ column on its center. Given:

Effective depth of the footing $=0\mathrm{.}36m$

Concrete, $f_c^{\text{'}}=28$MPa

Steel, $f_y=420$MPa

Allowable shear stresses at ultimate loads:

For two$-$way action $=1\mathrm{.}76$MPa

For one$-$way action $=0\mathrm{.}88$MPa

If factored load $P{u}_u=1,600kN,$ calculate the wide beam shear stress $($MPa$).$

A$.0\mathrm{.}49$

C$.0\mathrm{.}97$

B$.0\mathrm{.}65$

D$.1,14$

Based on one$-$way action shear, what is the allowable factored axial load, kN$?$

A$.2,880$

C$.1,612$

B$.2,160$

D$.1,688$

If factored load $P_u=1,800kN,$ which of the following gives the minimum required thickness $(mm)$ of footing. Use an effective cover of $95mm,($hint: punching is critical$)$

A$.450$

C$.470$

B$.375$

D$.500$